Installing a Diesel Heater in a Caravan: A DIY Guide

If you're looking for a way to stay warm and comfortable during chilly nights in your caravan, installing a diesel heater is a great solution. This guide will walk you through the process of installing a diesel heater in your caravan, as well as starting it up for the first time.

Before installing a diesel heater, it's important to choose the right one for your caravan. Consider the size of your caravan, as well as the heating needs of its occupants. Diesel heaters come in various sizes, so make sure to choose one that fits your caravan.

Part 1: Installing the Diesel Heater

What's Included with the Diesel Heater?

Before you start, make sure you have all the necessary components that come with your diesel heater. This may include the heater unit, mounting plate, air inlet and outlet vents, fuel tank, fuel pump and fuel filter, fuel line, exhaust pipe and muffler, air intake pipe, wiring and monitor.

Tools and Supplies You'll Need:

In addition to the components included with your diesel heater, you'll need a few tools and supplies to complete the installation process. These may include a jigsaw, drill and bits, screwdriver, pliers, wire strippers, wrenches, silicone sealant, ducting, and insulation.

1. Select a Spot to Install Your Diesel Heater

Choose a spot in your caravan where the heater can be mounted securely and safely. This should be a flat and level surface, away from flammable materials.
Cut a Hole for the Mounting Plate Using a jigsaw, cut a hole in the selected spot for the mounting plate to fit through. This should be the same size as the mounting plate.

2. Attach the Mounting Plate

Secure the mounting plate to the caravan using screws or bolts. Make sure it is level and secure.

2. Install the Air Inlet & Air Outlet Vents

Attach the air inlet and outlet vents to the mounting plate. These should be placed in a way that allows for proper ventilation.

3. Bolt the Diesel Heater 

Bolt the diesel heater to the floor underneath the caravan. Make sure it is level and secure.

4. Attach the Air Intake Pipe 

Attach the air intake pipe to the bottom of the diesel heater, and then to the undercarriage of the caravan. Make sure it is properly secured.

5. Attach the Exhaust Pipe & Muffler

Attach the exhaust pipe and muffler to the diesel heater, and then to the outside of the caravan. Make sure it is properly secured.

7. Mount the Fuel Tank

Mount the fuel tank in a secure location, away from heat sources and flammable materials.

8. Mount the Fuel Pump & Fuel Filter

Mount the fuel pump and fuel filter in a secure location, and connect them to the fuel tank and fuel line. Note that the fuel pump needs to be on an angle somewhere between 15-30°.

9. Attach the Fuel Line

Attach the fuel line to the fuel pump and fuel filter, and then to the diesel heater.

10. Connect the Wiring & Monitor

Connect the wiring and monitor to the diesel heater, making sure all connections are secure.

11. Seal Any Raw Timber Underneath the Van

Finally, seal any raw timber underneath the van with silicone sealant to prevent any leaks or drafts. 

Part 2: Starting the Caravan Diesel Heater for the First Time

  1. STEP 1: Prime the Fuel Pump Before starting the diesel heater: prime the fuel pump by pressing the priming button until fuel flows through the fuel line.

  2. STEP 2: Turn the Diesel Heater On Turn the diesel heater on by pressing the power button, and off by pressing it again.

  3. STEP 3: Set the Temperature Set the desired temperature using the temperature control knob or digital display.

  4. STEP 4: Set the Clock & Timer (only certain models): If your diesel heater has a clock and timer feature, set the clock and timer according to your preferences.

  5. STEP 5: Pair the Remote If your diesel heater comes with a remote control, pair it with the heater by following the manufacturer's instructions.

And that's it! You've successfully installed and started your diesel heater in your caravan. Enjoy the comfort and warmth it provides during your travels.