{"product_id":"calefaccion-truma-combi-4e-gas-electrica","title":"Truma Combi 4E heater, gas and electric, with iNet X Panel 2","description":"\u003ch2\u003eTruma Combi 4E heater, gas and electric, for your motorhome, caravan or campervan: three modes, 4000 W on gas and 3800 W combined\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTruma Combi 4E heater\u003c\/strong\u003e adds 230 V electric heating rods to the Combi 4, so it can run on gas, on the campsite mains hook-up or on both sources at once. It also keeps the built-in 10-litre water heater, so you still get heating and hot water from a single appliance in your motorhome, caravan or campervan.\u003c\/p\u003e\n\u003cp\u003eOn a campsite you can heat with electricity alone, at 900 W or 1800 W depending on the fuse rating available. On the road, or far from any socket, you use gas instead, at 2000 W and 4000 W. And in very cold weather you can use combined mode (max. 3800 W), which according to Truma is intended for very low outside temperatures; on gas alone it reaches 4000 W.\u003c\/p\u003e\n\u003cp\u003eIt comes with the iNet X Panel 2 control panel, which has a capacitive touchscreen and which you can also operate over Bluetooth. Note, though, that the box does not include the exhaust or the water connection set, and fitting, including the electrical part, is a job for technicians.\u003c\/p\u003e\n\u003ch2\u003eBenefits of the Truma Combi 4E heater\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eThree ways to heat: gas only, 230 V campsite electricity only, or both at once, with a maximum of 3800 W combined.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eIn combined mode it gives priority to electricity, and the gas burner only comes on when more power is needed.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eIn combined mode, if the 230 V supply is disconnected or fails, the heater switches to gas by itself.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eOn the campsite hook-up you save gas and, according to Truma, electric mode is completely silent and produces no emissions.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eElectric power to suit you: 900 W (3.9 A) or 1800 W (7.8 A), depending on the fuse protection at the campsite.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eAccording to Truma, it heats the vehicle and the water particularly quickly and uses little energy.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003e10-litre stainless steel tank, with water heated by gas or by electricity and, in summer, without switching the heating on.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eFour warm-air outlets and, if the tank is empty, it keeps heating the living space.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eYou control it from the panel or from the iNet X App over Bluetooth, with up to 6 timers.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eWeighs 15.5 kg without water, with the electric rods already built in.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eIs it compatible with your motorhome, campervan or caravan?\u003c\/h2\u003e\n\u003cp\u003eTruma limits use of the Truma Combi 4E heater to motorhomes of vehicle class M1 and caravans of class O, and it also asks for a gas installation that complies with EN 1949. If your campervan is registered as a motorhome, it meets the first requirement; if it is a commercial vehicle (class N), you cannot fit it.\u003c\/p\u003e\n\u003cp\u003eSize matters too, since the range is divided into small, medium and large vehicles. So the Combi 4E is for small and medium-sized ones and the Combi 6E for large ones. To use electric mode you also need a campsite hook-up with sufficient fuse protection.\u003c\/p\u003e\n\u003ch3\u003eVehicle, space and electricity for the Truma Combi 4E heater\u003c\/h3\u003e\n\u003cp\u003eStart with the space and the hook-up, because both affect the installation. Truma also lists the vehicles in which you cannot install it.\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:16px 0; font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:40%;\"\u003eRequirement\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eWhat Truma says\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003ePermitted vehicles\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eMotorhomes of vehicle class M1 and caravans of class O, with the gas installation carried out to standard EN 1949.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eVehicles not permitted\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eCoaches and buses (M2 and M3), commercial vehicles (class N), boats and other watercraft, hunting or forestry huts, weekend homes and canopies; nor is it allowed in trailers or vehicles that carry dangerous goods.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eVehicle size\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eSmall and medium-sized.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eUnit dimensions (L x W x H)\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e510 x 450 x 300 mm\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eMinimum installation dimensions\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e540 x 500 x 350 mm, with additional space for the gas connection, the water connections and the drain valve depending on the installation situation.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003e12 V supply\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eThe unit runs on 12 V; you will find the consumption in the technical specifications.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003e230 V mains supply\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eFor electric operation, check that the fuse protection of the campsite supply can handle the power you set: 900 W (3.9 A) or 1800 W (7.8 A). The cable reel must be fully unwound so that the cable does not overheat.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eControls and accessories\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eOnly with the matching Truma control panels and accessories. The vehicle manufacturer decides where the room temperature sensor goes.\u003c\/td\u003e\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSo the type of vehicle, the space and the campsite hook-up are the three points to confirm first. If any of them is a problem, discuss it with your installer before you buy.\u003c\/p\u003e\n\u003ch3\u003eGas, regulator and driving\u003c\/h3\u003e\n\u003cp\u003eEven if you have mains electricity, the gas side still has to be installed correctly. To heat while you drive you need a safety shut-off device, such as the \u003ca href=\"\/en\/products\/regulador-gas-truma-monocontrol-cs\"\u003eMonoControl CS regulator\u003c\/a\u003e, and with two cylinders Truma recommends the \u003ca href=\"\/en\/products\/regulador-gas-truma-duocontrol-cs-vertical\"\u003eDuoControl CS vertical\u003c\/a\u003e or the \u003ca href=\"\/en\/products\/regulador-gas-truma-duocontrol-cs-horizontal\"\u003eDuoControl CS horizontal\u003c\/a\u003e.\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:16px 0; font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:40%;\"\u003eTopic\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eWhat Truma says\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eGas and pressure\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eLPG (propane \/ butane) at 30 mbar. The service pressure of the supply and that of the unit (rating plate) must match.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eRegulator\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eRegulating devices to DIN EN 16129 (in vehicles), with a fixed outlet pressure of 30 mbar and a flow rate that covers at least the maximum consumption of all appliances. Truma recommends the MonoControl CS and, with two cylinders, the DuoControl CS.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eCylinders\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eUpright, drawing gas in the vapour phase; you must not draw it in the liquid phase.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eCold\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eAt temperatures around 0 °C or below, the regulator or the changeover valve must work with the EisEx regulator heater.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eWhile driving\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eSafety shut-off device in accordance with UNECE Regulation 122, e.g. the MonoControl CS. Without it, you keep the cylinder closed and put up warning signs in the gas locker and near the control panel.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eWhen not to use it\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eNever during refuelling, in car parks, garages or on ferries: switch it off at the control panel, and it must not be possible to switch it on remotely.\u003c\/td\u003e\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSo electric mode is for the campsite, and heating while driving always depends on gas and its regulator. Also, the conditions for the cowl, the water and the warm-air ducts are in the installation section.\u003c\/p\u003e\n\u003ch2\u003eTechnical specifications of the Truma Combi 4E heater\u003c\/h2\u003e\n\u003cp\u003eTruma's documents call it the Combi 4 E; these are its official figures. Because the dimensions, the gas and the service pressure affect the installation, they already appear in the compatibility table.\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:16px 0; font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:40%;\"\u003eSpecification\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eValue\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eWater capacity\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e10 litres (stainless steel tank)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eWater heating time from approx. 15 °C to approx. 60 °C\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003ewater heater only: approx. 23 min (EN 15033); heating + water heater: approx. 80 min\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003ePump pressure \/ system pressure\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003emax. 2.8 bar \/ max. 4.5 bar\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eAir flow (free-blowing, without ducting)\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003emax. 249 m³\/h with 3 outlets; max. 287 m³\/h with 4 outlets\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eStandby heat consumption\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e8.6 g\/h in gas operation (EN 15033)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eQuiescent current at 12 V\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eapprox. 0.001 A\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eHeating the water only, at 12 V\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003emax. 0.5 A\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eFrostControl heating element (optional) at 12 V\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003emax. 0.4 A\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eProtection type\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eIPX1\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003e12 V fuse\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e10 A fast-acting, 5 x 20 mm\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eRated heat output on gas (automatic stages)\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e2000 W \/ 4000 W\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eGas consumption\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e160 – 335 g\/h\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eData according to EN 624\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eQn = 4.8 kW (Hs), 345 g\/h, C13, I3 B\/P(30)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eConsumption at 12 V, heating + water heater\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e1.2 – 6.5 A\u003c\/td\u003e\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eElectrical, combined and weight data for the Truma Combi 4E heater\u003c\/h3\u003e\n\u003cp\u003eBecause the 230 V rods add these figures, we have put them in a separate table. That way you can compare the electric and combined output with the output on gas.\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:16px 0; font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:40%;\"\u003eSpecification\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eValue\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eOutput in electric operation (230 V)\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e900 W \/ 1800 W\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eOutput in combined operation (gas + electric)\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003emax. 3800 W\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eConsumption at 230 V\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e3.9 A (900 W) or 7.8 A (1800 W)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003e230 V fuse\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e10 A fast-acting, tripping delay “H”\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eWeight without water\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e15.5 kg (with peripherals: 16.0 kg)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eIt weighs 15.5 kg without water, which is more than the Combi 4, at 14.4 kg. According to Truma, the figure with peripherals includes the control panel, the bracket, the cables, the flexible hoses, the fixing material and the FrostControl, although not everything comes in the box.\u003c\/p\u003e\n\u003ch2\u003eHow the Truma Combi 4E heater works\u003c\/h2\u003e\n\u003cp\u003eIt is a blown air heater with a built-in water heater and, in addition, 230 V electric heating rods. The Truma Combi 4E heater therefore lets you choose between three energy sources:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eGas only (propane or butane), for stand-alone use: the unit chooses the output stage it needs by itself.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003e230 V electricity only, for stationary use on the campsite: you preselect 900 W (3.9 A) or 1800 W (7.8 A) depending on the fuse rating available.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eGas and electricity at once, the combined mode, which is only possible in heating operation.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn combined mode, when the power demand is low, for example to hold the temperature steady, electricity from the 230 V supply has priority. The gas burner only switches on when the power demand rises.\u003c\/p\u003e\n\u003cp\u003eWhen the demand is higher, for example when heating the vehicle from cold or in low outside temperatures, Truma advises choosing gas or combined mode so that there is always enough power.\u003c\/p\u003e\u003cp\u003eOn the other hand, the unit heats the water with gas or with electricity, not with both at once: if you have selected combined mode, it uses electricity for the water and, if the 230 V supply is cut, it switches to gas by itself.\u003c\/p\u003e\n\u003ch3\u003eSensors, heating without water and driving\u003c\/h3\u003e\n\u003cp\u003eWhile a room temperature sensor measures the air in the vehicle, internal sensors monitor the water. The unit reduces its output before it reaches the set temperature. With an empty tank you can heat the living space alone, on gas, on electricity or in combined mode.\u003c\/p\u003e\n\u003cp\u003eWhen you drive, the fan-assisted burner keeps running on gas, but it requires the safety shut-off device from the table above. Electric mode, on the other hand, is intended for stationary use on the campsite.\u003c\/p\u003e\n\u003ch2\u003eiNet X Panel 2 control panel for the Truma Combi 4E heater\u003c\/h2\u003e\n\u003cp\u003eThis version comes with the iNet X Panel 2, which controls the heating, the air-conditioning system and the \u003ca href=\"\/en\/products\/truma-levelcontrol-indicador-digital-nivel-gas-app-sms\"\u003eTruma LevelControl\u003c\/a\u003e. You operate it with the 4.3-inch capacitive touchscreen or with the free iNet X App. According to Truma, the automatic climate control and the timer also take care of the day-to-day regulation for you.\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:16px 0; font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:40%;\"\u003eSpecification\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eValue\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eDisplay\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eTFT-LCD 4.3\" touchscreen (capacitive)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003ePower supply\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e12 V DC (8 V DC – 16 V DC)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eConsumption\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e1.5 W\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eInterfaces\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eTIN bus, CI bus, CAN bus and Bluetooth Low Energy (BLE)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eOperating and storage temperature\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e-30 °C to 60 °C\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eBattery\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eCR 2032, service life of around 8 years; the app warns you when it needs replacing\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eWeight\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eapprox. 190 g\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eDimensions (L x W x H)\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e89 x 118 x 31 mm\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eProtection\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eclass III; front IP20, rear IP00\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003ePhysical buttons\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eHome and Back\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003ePhones connected at once (iNet X App over Bluetooth)\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eup to 3\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eTimers\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eup to 6\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eAppliances it controls\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eheating, air-conditioning system and Truma LevelControl\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eRemote control\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003ewith the iNet X Connect module (optional, not included)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eManufacturer's warranty\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e24 months\u003c\/td\u003e\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAs you can see, it is a connected unit: it supports up to 3 phones at once and up to 6 timers. The app also warns you when the battery, which according to Truma lasts around 8 years, needs changing.\u003c\/p\u003e\n\u003ch3\u003eWhat it shows and how it is updated\u003c\/h3\u003e\n\u003cp\u003eThe panel shows the indoor climate, the outdoor and indoor temperatures and error messages with suggested solutions; if you install the Truma LevelControl, it adds the gas level. You update it from the app when you have internet and Bluetooth, and an update can take up to 15 minutes.\u003c\/p\u003e\n\u003cp\u003eIf you leave the panel unused, after 60 seconds it goes to the lock menu and after another 60 to standby mode; phones can still control the appliances. Clean the screen with a non-abrasive cloth and water, or with mild soap. To control the heater remotely you also need the optional iNet X Connect module.\u003c\/p\u003e\n\u003ch2\u003eInstallation and fitting of the Truma Combi 4E heater\u003c\/h2\u003e\n\u003cp\u003eOnly qualified and authorised personnel (technicians), with the installation and operating instructions to hand, may fit, repair and inspect the Truma Combi 4E heater. Because there is also a 230 V mains connection, Truma warns of danger to life from electric shock when changing the fuse or the mains cables.\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:16px 0; font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:40%;\"\u003eItem\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eWhat the installer must allow for\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eCowl\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eDo not block it, and Truma prohibits fitting covers over the cowl. When cleaning the vehicle, do not spray water directly at it. The unit needs an exhaust system, which is not in the box.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eOpening window\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eIf the cowl is near or below a window that opens, you need an automatic cut-off device; under EN 1949, a window switch if it is less than 30 cm away.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eWarm-air ducts\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eTruma does not allow the unit to run without them.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eMains water\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eIf you connect the vehicle to a mains water supply (external pressure), a pressure-reducing valve so that the water heater does not have to withstand more than 2.8 bar.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eSolar installation\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eUnder EN 1648, always a battery with a charge controller or a voltage regulator (11 V – 15 V; AC voltage ripple \u0026lt; 1.2 Vpp) between the panels and the heater.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eYellow label\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eThe installer or the owner must stick the enclosed warning label in a place clearly visible to all users, e.g. the wardrobe door.\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold;\"\u003eMains cable\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eIf the mains connection cable is damaged, the manufacturer, its customer service or a similarly qualified person must replace it, to avoid hazards.\u003c\/td\u003e\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eIn short, before finishing, the installer must check the exhaust, water, window, electrics and label.\u003c\/p\u003e\n\u003ch3\u003eFrost and FrostControl\u003c\/h3\u003e\n\u003cp\u003eIf the water freezes, the unit can suffer serious damage, because the Combi has no built-in frost protection. Truma's solution is the FrostControl valve, which is part of the FC TB (36100-01) or FC JG (36100-02) water connection set; that set is not in the box.\u003c\/p\u003e\n\u003cp\u003eThe valve works without electricity and drains the water heater when there is a risk of frost. It opens by itself below about 3 °C and you can only close it by hand when it is about 7 °C or more. When the vehicle is parked in frosty weather, always drain the water heater, because Truma's warranty does not cover frost damage.\u003c\/p\u003e\n\u003ch3\u003e230 V fuse and overheating protection\u003c\/h3\u003e\n\u003cp\u003eBefore you open the electronics cover, you must disconnect the unit from the power supply at all poles. The 230 V fuse is inside, and you may replace it only with an equivalent one: 10 A, fast-acting with tripping delay “H”, as Truma specifies.\u003c\/p\u003e\n\u003cp\u003eFor 230 V operation, the heater also has a mechanical overheating switch. If the 12 V supply is interrupted during operation or run-on, it can trip. To reset it, let the heater cool down, remove the connection cover and press the reset button; then put the cover back.\u003c\/p\u003e\n\u003ch2\u003eWhat the box contains and the accessories you need\u003c\/h2\u003e\n\u003cp\u003eThe version with the iNet X Panel 2 (Truma 33715-20) includes:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eCombi 4E heater with water heater.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eiNet X Panel 2 control panel.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003e6 m control panel cable.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYou should also know what is not in the box: the following items, which you need to allow for before you arrange the installation. The contents do not list the warm-air ducts, although the unit cannot run without them.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eZR 80 wall cowl or roof cowl, with its exhaust and combustion air pipes.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eFC TB (36100-01) or FC JG (36100-02) water connection set, the one that includes the FrostControl valve and the elbows.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eFrostControl and optional heating element (70070-01).\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eiNet X Connect, the optional remote module.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eWarm-air ducts with their outlets.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eMonoControl CS or DuoControl CS gas regulator.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOfficial Truma part numbers for the exhaust\u003c\/h3\u003e\n\u003cp\u003eThese are Truma's part numbers for the exhaust system. Use them as a guide with your installer, because none of them comes in the box.\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:16px 0; font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:18%;\"\u003ePart number\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:52%;\"\u003eWhat it is\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:30%;\"\u003eWhat it is for\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e36240-01\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eComplete ZR 80 wall cowl kit: inner cowl part, 1.1 m exhaust pipe, 1 m combustion air pipe and clamps (without the outer cowl part)\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eRouting the exhaust gases out through the vehicle wall\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e34122-01\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eComplete CD roof cowl kit: 3 m AA 3 exhaust pipe, 3 m ZR 80 combustion air pipe and clamps\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eRouting the exhaust gases out through the roof\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e36140-01, 36151-01 \/ -05 \/ -08 \/ -09 \/ -10, 34051-01, 39320-00, 39580-00, 39590-00, 34070-01, 34080-01\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eLoose parts: ZR 80 inner part, outer parts in cream, bianco, light grey, black and anthracite, DKC 2 roof cowl, pipes by the metre, clamp, 30 cm extension and SDDF wall bushing\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eCompleting or extending the wall or roof cowl\u003c\/td\u003e\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOfficial Truma part numbers for water, air and other accessories\u003c\/h3\u003e\n\u003cp\u003eWater, warm air and the window each have their own official part numbers, which Truma groups as follows.\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:16px 0; font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:18%;\"\u003ePart number\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:52%;\"\u003eWhat it is\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999; font-weight:bold; width:30%;\"\u003eWhat it is for\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e36100-01\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eFC TB water connection set: FrostControl TB power-free drain valve, TB elbows for Ø 10 mm flexible water hoses and black PVC flexible hose (TB = barbed connection)\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eConnecting the water and draining the water heater if there is a risk of frost\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e36100-02\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eFC JG water connection set: FrostControl JG power-free drain valve, JG elbows for Ø 12 mm rigid pipe and transparent PVC flexible hose (JG = John Guest system)\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eThe same as the one above, with rigid pipe\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e70070-01\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eFrostControl heating element with 1.5 m cable\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eFilling the water tank sooner, regardless of the ambient temperature\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e34092-01 \/ 34310-01\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eBlack BGC elbow for connecting warm-air ducts (Ø 65 mm or Ø 72 mm) directly and black CB blanking cap\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eConnecting or closing off a warm-air outlet\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e34030-34700 \/ 34020-01581\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eWindow switch for standard caravan opening windows, and narrow window switch\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eSwitching the heater off when you open the window\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003e47000-00140\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eAlternative iNet X room temperature sensor (e.g. FFC2); Truma cites it for the iNet X Panel control panel\u003c\/td\u003e\u003ctd style=\"padding:10px; border:1px solid #999999;\"\u003eAlternative sensor that connects directly to the control panel\u003c\/td\u003e\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eTruma also offers control panel cables in various lengths (maximum 10 m), and requires the window switch if the cowl is below an opening window or less than 30 cm from it.\u003c\/p\u003e\n\u003ch2\u003eWho is the Truma Combi 4E heater for?\u003c\/h2\u003e\n\u003cp\u003eThe Truma Combi 4E heater suits you if you move between the road and the campsite and want to choose your energy source. For example, if any of these situations sounds familiar:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eYou spend long periods on campsites with electric hook-up and prefer to save gas.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eYou travel in winter and want to combine gas and electricity when the cold bites.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eYour motorhome or caravan is small or medium-sized.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eNoise bothers you and you value the fact that, according to Truma, electric mode is quiet.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eYou want to control the heating from your phone, with up to 6 timers.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"background-color: rgb(243, 253, 244); padding: 6px 12px; border-radius: 6px; display: inline-block; margin: 0px 0;\"\u003eYour campervan is registered as a motorhome (class M1); the heater cannot be fitted in a commercial vehicle (class N).\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMaintenance, cleaning and warranty for the Truma Combi 4E heater\u003c\/h2\u003e\n\u003cp\u003eTo keep the Truma Combi 4E heater working well, clean the installation space at least once a year and have specialist technicians check the unit's cleanliness. Also use the safety and drain valve, at least twice a year, to remove limescale. For safety, children must not carry out maintenance or cleaning.\u003c\/p\u003e\n\u003cp\u003eSterilise and descale the tank regularly. Products sold in camping shops are suitable and, against limescale, so are commercial descalers, vinegar essence or citric acid: pour them in through the water inlet, leave them to work and rinse thoroughly with clean water.\u003c\/p\u003e\n\u003cp\u003eTo combat micro-organisms, Truma adds a complementary thermal method, in gas operation: with the water at 60 °C the burner switches off, and if you leave the unit switched on for at least another 30 minutes without drawing hot water, the residual heat takes it to 70 °C.\u003c\/p\u003e\n\u003ch3\u003eSolar panels and smell of gas\u003c\/h3\u003e\n\u003cp\u003eWith solar panels, Truma requires a battery with a charge controller or a voltage regulator between them and the heater. When disconnecting the battery, disconnect the charge controller first. If you smell gas, put out all flames, do not use electrical switches or phones, ventilate, get everyone out, close the cylinders and do not use the installation again until technicians have checked it.\u003c\/p\u003e\n\u003ch3\u003eManufacturer's warranty\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer covers material or manufacturing defects for 24 months with a voluntary warranty. It is valid in the European Union, Iceland, Norway, Switzerland and Turkey, and Truma or an authorised Service Partner handles it and decides whether to repair or replace. It is a manufacturer's warranty, so it does not replace the statutory one, and frost damage is excluded.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between gas, electric and combined mode on the Truma Combi 4E heater?\u003c\/h3\u003e\n\u003cp\u003eOn gas, the heater runs independently of the mains, at 2000 W or 4000 W. On electricity, however, it uses the campsite's 230 V at 900 W or 1800 W. Finally, in combined mode it uses both sources (max. 3800 W), gives priority to electricity and lights the burner only when more power is needed.\u003c\/p\u003e\n\u003ch3\u003eCan I use the Truma Combi 4E heater while driving?\u003c\/h3\u003e\n\u003cp\u003eYes, on gas, provided the installation has a safety shut-off device, such as the MonoControl CS regulator. If it does not, you must keep the cylinder closed while driving, with warning signs. Electric mode, on the other hand, is intended for stationary use on the campsite.\u003c\/p\u003e\n\u003ch3\u003eWhat happens if the campsite power is cut?\u003c\/h3\u003e\n\u003cp\u003eWith combined mode selected, if the 230 V supply is disconnected or fails, the heater automatically switches to gas operation.\u003c\/p\u003e\n\u003ch3\u003eCombi 4E or Combi 6E: which one do I need?\u003c\/h3\u003e\n\u003cp\u003eIt depends on the size of the vehicle: the Combi 4E is for small and medium-sized vehicles and reaches 3800 W combined, while the Combi 6E is for large vehicles and reaches 6900 W. Both also weigh 15.5 kg without water and share the same dimensions.\u003c\/p\u003e\n\u003ch3\u003eWhat else do I need to buy to install it?\u003c\/h3\u003e\n\u003cp\u003eThe box does not include the exhaust system or the water connection set with the FrostControl, nor the warm-air ducts. You also need a gas regulator such as the MonoControl CS, and a qualified installer, because Truma only allows fitting by technicians.\u003c\/p\u003e","brand":"Truma","offers":[{"title":"Default Title","offer_id":55629894418774,"sku":"A0040187","price":2510.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/9063\/5682\/files\/truma-combi-4e-gas-electrica-vista-frontal.webp?v=1792394978","url":"https:\/\/evacaravan.com\/en\/products\/calefaccion-truma-combi-4e-gas-electrica","provider":"Eva Caravan","version":"1.0","type":"link"}