Diesel Night-heater hot air outlet

I wouldn't worry about the heat loss running the duct across the van, I would be more concerned about routing avoiding the exhaust etc.
Quick calculation of resistance points for installation of a Webasto Air Top 2000ST 2Kw heater with the ducting running across to the nearside would give you less than 100 points and the max is 325 points so no pressure problems with that. ( I only deal with Webastos but expect that the Eberspächer would be roughly the same ) 5m of ducting would be fine!

Inlet and outlet together in the same step is a no-no.

If you have clear space underside under the passenger seat that is the obvious site - I assumed that you would have the tank there. No need for step intake or worries about outlet with an under seat installation then.
 
That's great thanks for the info. I will looking into the routing for the sliding door step. Keen on this idea because when I have airbeam awning up the sliding door can be left open and blow a little hot air into that.
 
But it isn't waterproof - no good for external unprotected use, it is water repellent but would not withstand the ducking it would get under a van. ( Thermoduct). I have about 1m of 90mm duct under mine uninsulated and is fine with 4Kw down to 1.5Kw (lowest output setting)

I prefer to use silicone ducting underneath also rather than the fibre internal stuff.
 
If you mount under the passenger seat you can use a rotatable ball vent to direct the heat at 45° out of the slider.
 
I have a safe under the passenger seat, and am short on room under the driver’s with leisure battery, dc dc charger, 240v RCD and charger etc.

I know this is where most people bring their hot air out, but has anyone gone with any other options? I am mounting it underslung, is there any reason it can’t be forward of the spare wheel? There seems to be a bit of space there, if I could manage to bring the outlet out from under the bed/seat?

I’ve read up on the B pillar OEM method, but that cut puts me off. Just after a few other ideas or perhaps anything I’ve not thought of?

cheers all
 
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I have a safe under the passenger seat, and am short on room under the driver’s with leisure battery, dc dc charger, 240v RCDs and charger etc.

I know this is where most people bring their hot air out, but has anyone gone with any other options? I am mounting it underslung, is there any reason it can’t be forward of the spare wheel? There seems to be a bit of space there, if I could manage to bring the outlet out from under the bed/seat?

I’ve read up on the B pillar OEM method, but that cut puts me off. Just after a few other ideas or perhaps anything I’ve not thought of?

cheers all
My front seat bases are occupied the same as yours and my heater outlet comes up through the floor in the corner by the B pillar and seat base
 
This came up the other day, and the suggestion of an outlet in the sliding door step was raised.. food for thought?

I have twin sliders, sounds like it could be an option... On here? Or real life? Or could you give me a link? Cheers
 
I have a safe under the passenger seat, and am short on room under the driver’s with leisure battery, dc dc charger, 240v RCD and charger etc.

I know this is where most people bring their hot air out, but has anyone gone with any other options? I am mounting it underslung, is there any reason it can’t be forward of the spare wheel? There seems to be a bit of space there, if I could manage to bring the outlet out from under the bed/seat?

I’ve read up on the B pillar OEM method, but that cut puts me off. Just after a few other ideas or perhaps anything I’ve not thought of?

cheers all

I have brought mine up through the rear seat base and split it so that heat is directed to the cab and the rear shower room. Be aware that if you are using 90mm duct for a 3Kw or bigger heater there is a piece of heavy chassis that you may have to nick a little piece out of with the hole saw to get it through if you go straight rearwards from the heater depending upon where your seat base is fitted. 2Kw heaters with their 60mm duct is fine though.
(Excuse dog hairs and mud!)

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I have the extreme battery supplied by travelvolts mounted front to back. A ctek charger and small fuse box with the heater duct under the drivers seat. There is plenty of room to fit all that under there.
 
I have the extreme battery supplied by travelvolts mounted front to back. A ctek charger and small fuse box with the heater duct under the drivers seat. There is plenty of room to fit all that under there.
Thanks for that. I also have Travelvolts kit but mounted my battery left to right so I’ll have a look at altering my setup. Cheers
 
Yeah I had mine the same, moved it front to back and kept it on the right side of the seat. Ctek in top left and a small fuse box on top of the battery at the back so it's easily accessible. This leaves plenty of room for the heater duct. Excuse the tape measure I'm doing some measuring up for my fridge pod.

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Yeah I had mine the same, moved it front to back and kept it on the right side of the seat. Ctek in top left and a small fuse box on top of the battery at the back so it's easily accessible. This leaves plenty of room for the heater duct. Excuse the tape measure I'm doing some measuring up for my fridge pod.

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James, that’s great thanks.
 
I have a underslung tank(gas) and underslung proprex heater on my T6 SWB, I have a battery under my drivers seat (to the back of the seat). Has anyone run a proprex heater? or a diesel heater and cut the holes. I think I need about 70mm holes for 100mm square fittings. Unit is mounted under floor under drivers seat.

I will be fitting a Evodesign kitchen or similar, standard width with fridge etc down drivers side.

Kris
 
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