Truma Combi D6E Water & Space Heater With iNet X Control Panel (Diesel or 230V Electric)

Price:  £1,995.00   (£1,662.50 Exc. VAT)

Product code:  P03817
Brand:  Truma



2 in stock

Please note: Typically delivered within 2-3 working days (UK Mainland only).

Due to its size, this item is not eligible for our free returns service.


The Truma Combi D6E is perfect for use in motorhomes, campervans and caravans, bringing both water heating and blown-air space heating together in a single compact unit that saves you space and weight, and reduces installation complexity. It has a 6kW max. adjustable heating output that can be powered from diesel (using your vehicle's fuel tank), electricity or a mix of both, and is quiet and energy efficient for the performance it offers. The multi power source option gives you ultimate flexibility to have heat when you need it, whether you are on the move, parked up on site, or off grid out in the wilds, and the only other power requirement is a 12 volt DC supply from your leisure battery.

There are 3 options available for powering the Combi D6E: Diesel Mode, Electric Mode & Mixed Mode (Diesel + Electric for maximum power). When operating in mixed mode, electricity is prioritised to conserve fuel if the extra power is not required. The 4 air outlets give you plenty of options to run hot air ducting to suit your installation and the integrated 10L stainless steel tank can operate on water heating only 'Summer' mode, heating from 15°C to 60°C in as little as 20 minutes.

A universal fitting kit is supplied for connecting to the vehicle's diesel tank and includes a fuel metering pump, pipework and fittings. The sophisticated fuel control system features an automatic filling/priming function and accurately controls the metering of fuel for optimum efficiency.

A frost control drain valve is included with the kit that automatically opens and drains the water from the heater if the ambient temperature becomes too low (approx. 3°C), preventing freezing water damaging the unit. The frost control valve also acts as an over pressure relief valve for the water heater and provides a manual drain function. In colder conditions, the unit can be run in hot air only mode until the ambient temperature inside the vehicle is high enough (approx. 7°C) to use the water heater.

The Combi D6E is supplied with Truma's iNet X smart control panel with a 4.3" colour touch screen. This next generation panel has a sophisticated user interface coupled with intuitive navigation and step-by-step trouble shooting. It can be used to control other compatible devices and is internet-ready for remote control and monitoring and updates via the iNet X mobile app.

Note: Hot air ducting, air outlet nuts, air outlets and other accessories for Truma combi heaters must be purchased separately - click here to view the full range.


  • Water and space heating in a single, compact device
  • Saves weight and space
  • 6kW max. output (adjustable)
  • Diesel, electric & mixed operation
  • Integrated 10L stainless steel water tank
  • Summer mode - water heating only
  • Warm air distribution via four outlets
  • Separate room temperature sensor
  • Heating available when driving, on-site or off-grid
  • Prioritises electric in mixed mode to save fuel
  • iNet X control panel with 4.3" touch screen

iNet X control panel

The iNet X control panel is the heart of Truma's iNet X system and the first step towards a smart campervan, motorhome or caravan. Its intuitive menu navigation and touch-screen operation make controlling your heating system a breeze, and internet connectivity allows for remote operation and monitoring plus software updates and new features. The panel can also be used as a central operating system for the control of compatible Truma products and other devices, giving you complete climate control.

  • 4.3" colour touch screen
  • Sophisticated menu and user interface
  • Intuitive navigation and system control
  • Clear diagnostics & error messaging
  • Mobile networked for remote operation via the iNet X app
  • Software updates and enhancements via the iNet X app
  • Central control of multiple devices with one operating system

Kit Contents

  • Truma Combi D6E water & blown-air heater
  • Truma iNet X control panel
  • RJ45 connection cable for control panel
  • Combustion air intake & exhaust ducting
  • Intake/exhaust side wall cowl
  • Black trim for side wall cowl
  • John Guest (JG) connection kit for water supply
  • Frost control valve
  • Diesel metering pump, fuel pipe and wiring harness
  • Room temperature sensor (cable not supplied - requires 2 x 0.5mm²)
  • Clamps, clips, fittings & fixings

Note: This unit should be installed by a suitably qualified person and always tested for gas and electrical safety following installation.

  • Model: Combi D6E
  • Energy sources: Diesel (as per EN590), 230V electric or combination
  • Rated heat output - diesel mode: 1000W / 2000W / 3000W / 4000W / 5000W / 6000W (selectable)
  • Rated heat output - electric mode: 900W / 1800W (selectable)
  • Rated heat output - mixed mode: 6900W max.
  • Fuel consumption: 0.1-0.6 l/h
  • Current draw @12V DC - water heating only: 0.5A max.
  • Current draw @12V DC - water & air heating: 0.4 - 8.1A max.
  • Quiescent current draw: approx. 1mA
  • Current draw @230V AC: 3.9A (900W) / 7.8A (1800W)
  • Air flow rate with 4 warm air outlets (free flowing): 287m³/hr max.
  • Nominal battery system voltage: 12V DC
  • Water capacity: 10L
  • Pump pressure: 2.8bar max.
  • System pressure: 4.5bar max.
  • Heating time 15-60°C water heating only: approx. 20 mins
  • Heating time 15-60°C water & blown air heating: approx. 80 mins
  • Weight: 16.9kg
  • Overall dimensions: 510 (L) x 450 (W) x 300 (H) mm
  • Minimum installation space dimensions: 540 (L) x 500 (W) x 350 (H) mm (extra space required for supply connections)
  • Protection rating: IP21
  • Altitude rating: 3000m


  • Model: iNet X Panel
  • Display type: 4.3" colour resistive touch
  • Nominal system voltage: 12 VDC
  • Operating voltage range: 8 - 16 VDC
  • Power consumption: 1.5W
  • Current draw: approx. 130mA
  • Overall dims: 120.1 (W) x 96.7 (H) x 31 (D) mm
  • Screen depth when mounted: 9mm
  • Interfaces: TIN bus, CI bus, CAN bus
  • Updatable: Yes, via the Truma iNet X app


  • Warranty: 2 year limited parts & labour *

* The heater system must have been installed by a suitably qualified person in accordance with the manufacturer's instructions and relevant industry standards, then serviced annually by an accredited Truma engineer or service centre. The warranty does not cover damage due to frost, even with the frost control valve fitted.

Part Number:  33516-78/UKSP

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Truma is a German company manufacturing high quality leisure products for caravans, campervans, boats and motorhomes; specialising in heating, air conditioning and water systems.

Business Hours: Mon - Fri | 9am - 5pm
CALL Sales & Support: 01844 885100
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