Filling a Diesel Heater Fuel Tank

Ideally, your diesel heater fuel tank should be mounted in a safe, accessible location where refuelling is easy and any minor spills aren’t a major concern. Let’s be honest — even when you’re careful, a bit of diesel dribble now and then is pretty common.

Having good access makes refilling quicker, cleaner, and far less frustrating.

Using a Quick Disconnect for Easier Refuelling

If you don’t want to permanently mount your fuel tank, a quick disconnect fitting is a great alternative. This allows you to easily remove the tank from its mounting location, refill it elsewhere, and reconnect it without mess or fuss.

Quick disconnects are especially useful in tight installs or when your tank is mounted in an awkward spot.

Choosing the Right Fitting

The quick disconnect shown above is suitable for internal or shaded installations, as it is not UV stable. If your fuel line or fitting will be exposed to sunlight or outdoor conditions, a metal quick disconnect fitting is the better option for long-term durability.

Why Quick Disconnects Work So Well

The key advantage of these fittings is the built-in non-return valves on both sides. When disconnected, fuel flow is automatically stopped — meaning:

• No diesel spills
• No air entering the fuel line
• No need to re-prime the system

For anyone wanting a cleaner, more user-friendly refuelling setup, quick disconnect fittings are a simple upgrade that make a big difference.