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anderclean

  • Posts: 320
Hot Water Systems drawing fuel..
« on: January 26, 2026, 10:23:23 pm »
Guy's with diesel hot water systems, do some of you take fuel directly from your vans fuel tank ?

I know most have jerry cans or something similar in the back of van,
I'm unable to get someone who can 'successfully' draw fuel from my van tank, for my diesel hot water system
Had a few failed attempts..

Jonny 87

  • Posts: 3519
Re: Hot Water Systems drawing fuel..
« Reply #1 on: Yesterday at 08:46:05 am »
Grippatank fit this as standard.

Small fuel pump underneath the van, tapped into your fuel tank, and it feeds off it that way.   
Vision Technician / Visual Engineer /  Vision Enhancement Operative /...........................................................OnlyUseMeWFP AkA Jonny the Windy Wesher

dazmond

  • Posts: 24679
Re: Hot Water Systems drawing fuel..
« Reply #2 on: Yesterday at 09:24:06 am »
Never had a jerry can always straight from fuel tank. Grippatank
price higher/work harder!

Scottish Cleaning Service

  • Posts: 902
Re: Hot Water Systems drawing fuel..
« Reply #3 on: Yesterday at 10:40:53 am »
I'm the same, best thing Grippatank has done for me when fitting the system. Give Oliver a call at Grippatank but he is very busy so may need to wait a month or two.

Splash and dash

  • Posts: 498
Re: Hot Water Systems drawing fuel..
« Reply #4 on: Yesterday at 11:38:15 am »
I'm the same, best thing Grippatank has done for me when fitting the system. Give Oliver a call at Grippatank but he is very busy so may need to wait a month or two.


Grippatank cut into the return fuel lines on my van and they had to be replaced they couldn’t or wouldn’t  fit a standpipe into the tank never did get a reason why , I got the standpipe fitted by a local Wabasto specialist, I think dazmond had similar with them they cut into a fuel line and either the heater or the van wouldn’t start ?

robert mitchell

  • Posts: 2034
Re: Hot Water Systems drawing fuel..
« Reply #5 on: Yesterday at 07:13:18 pm »
I'm the same, best thing Grippatank has done for me when fitting the system. Give Oliver a call at Grippatank but he is very busy so may need to wait a month or two.


Grippatank cut into the return fuel lines on my van and they had to be replaced they couldn’t or wouldn’t  fit a standpipe into the tank never did get a reason why , I got the standpipe fitted by a local Wabasto specialist, I think dazmond had similar with them they cut into a fuel line and either the heater or the van wouldn’t start ?

It was the heater only running with the engine running, a lot of modern vans dont return pipes only have fuel in when the engine is running , fitting a standpipe in the tank is pretty straightforwrd for a mechanic though .
www.ishinewindowcleaning.co.uk

The man who never made a mistake never made anything.

anderclean

  • Posts: 320
Re: Hot Water Systems drawing fuel..
« Reply #6 on: Yesterday at 09:56:43 pm »
unfortunately, my local garage wouldn't touch it !

Spruce

  • Posts: 8722
Re: Hot Water Systems drawing fuel..
« Reply #7 on: Today at 07:54:22 am »
On my old 04 plate citroen relay I could just splice into the return to tank fuel line. The return pipe went all the way to the bottom of the tank.
Then there was a change in eu regulations for manufacturers and this fuel line now wasn't to reach to the bottom of the tank.

On my 62 plate Peugeot Boxer, I had to remove the fuel pump, drill and fit a connector/adaptor with a pipe down into the tank, and connected my heater to that. I had to be careful how I routed the pipe to the bottom of the track so it won't interfere with the fuel level sender unit. That pipe also wasn't too go to the bottom of the tank.

My van has an inspection cover plate inside the driver's cabin floor. So I didn't need to drop the tank. Not all vans have this inspection cover. In that case, the tank has to be lowered/removed.

The other part of this new eu regulation for fitters was that they weren't to drill a hole in any part of the tank that was plastic to fit the standpipe. They could only do this if the tank was made of steel.

This is a bit of a minefield.

There is/was a video on YouTube of someone showing how to fit a standpipe into the plastic tank of a Citroen Relay by partially dropping the fuel tank. He also made a scoop to collect the plastic cuttings from the drilling process so those those didn't drop into the tank. He removed the fuel pump to do this.
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