Auxiliary Cab Heater...

[Sancho]

I'm not offended.....

I'm suggesting a 'wet' system where the current heater pipes and matrixes (matrices??) are cut out of the cooling circuit and instead attached to a heat exchanger on the exhaust. If you could weld, or even do a bit of plumbing, I don't think that would be a very tough undertaking to sort that out - you would just need a suitable exhanger from somewhere and was suggesting that the 'dry' ones from an air cooled engine may be usable as they are designed to bolt to the right size pipe.

I hadn't considered pumping though. It would be a bit tougher to introduce a further water pump into the system. Could it be pumped just by the convection effect of the water heating to the heater, then cooling and dropping back down to the exchanger?? I suppose you would need a non-return valve on the flow side of the exchanger to make it only sink the return way.

[da SLUG man]

i reckon the truck night heater is the best bet... try a webasto

they have a thermostat, timer and run off diesel (hardly use any)...

they have a little exhaust (abliut 20mm flexible tube) so you'll have to get that out somehow... but the heater should fit under the passenger seat.

[The Lang-Shankit Scunner]

OOh webastos are pricey buggas, may be a bit ouch for me

[da SLUG man]

OOh webastos are pricey buggas, may be a bit ouch for me

try a truck breakers yard


edit, there's a few ebarspacher ones on ebay

[The Lang-Shankit Scunner]

try a truck breakers yard

will do, ill phone asround the now.

[dee]

got a new thought, was speaking to supersurf earlier and he was telling me of an install that uses the exhaust heat to do the business with the incoming fuel, the exhaust, I assume down pipe, has copper pipe coiled around it, domestic radiator supply pipe would probably do the trick I think, then you could return to the original set-up for the cab heater...

advantage I see of doing it that way is you'll get near instant heat into the fuel where as the coolant system will take several minutes to have a noticable effect on fuel temperature, just my inane ramblings

[The Lang-Shankit Scunner]

got a new thought, was speaking to supersurf earlier and he was telling me of an install that uses the exhaust heat to do the business with the incoming fuel, the exhaust, I assume down pipe, has copper pipe coiled around it, domestic radiator supply pipe would probably do the trick I think, then you could return to the original set-up for the cab heater...

advantage I see of doing it that way is you'll get near instant heat into the fuel where as the coolant system will take several minutes to have a noticable effect on fuel temperature, just my inane ramblings

I could replace my heat exchanger with thatg idea and then have the original matrix back up and running, ill think about that one.

[Sancho]

got a new thought, was speaking to supersurf earlier and he was telling me of an install that uses the exhaust heat to do the business with the incoming fuel, the exhaust, I assume down pipe, has copper pipe coiled around it, domestic radiator supply pipe would probably do the trick I think, then you could return to the original set-up for the cab heater...

advantage I see of doing it that way is you'll get near instant heat into the fuel where as the coolant system will take several minutes to have a noticable effect on fuel temperature, just my inane ramblings

That's pretty much what I was saying but taking the fuel heater out of the circuit and running it off the exhaust rather than the heater circuit. As the fuel already has its own pump that's probably a better idea - presumably there's no risk of the fuel getting so hot it catches fire??

[Highlander1]

http://cgi.ebay.co.uk/Eberspacher-Ai...QQcmdZViewItem

These are the best you can buy brilliant I can't fault them.

If only I had the cash they come up cheaper from scrap yards at times.

Cheers JB

It's snorkel or heater and snorkels top of the list at present heater then lift.

[mark g8awo]

Why not just tap off the original heater and put hoses back up to the matrix, then you have heating and pre heater.....

This idea is ok for this time of year but in the summer when you turn the taps closed you wont be heating the fuel...



The fuel heater should not be dragging the system down that much to give you problems with cab heat....Have you not got the rear floor heater that can give you the extra heat needed

[The Lang-Shankit Scunner]

This idea is ok for this time of year but in the summer when you turn the taps closed you wont be heating the fuel...



The fuel heater should not be dragging the system down that much to give you problems with cab heat....Have you not got the rear floor heater that can give you the extra heat needed

No its a 2-door so just the front mate

[nero279]

I assume your heat exchanger for the veg is tapped across the valve for the heater matrix, effectively running in parralel to the heater matrix, but not controlled by the valve for it so your veg heater is working all the time?

So what's to stop you fitting a 2nd valve the same as the one for the heater matrix into the veg heater pipes? And fitting an aftermarket oil temperature guage (although it would actually be measuring fuel temperature) into the fuel lines before the heater? Meaning that once the veg has warmed up from the warmed oil returning to the tank you can increase the flow resistance in the fuel heater pipes, sending some of the flow back through the heater matrix? At the same time monitoring the veg temperature so if it drops too low you can switch the coolant bias back to the fuel heater. Or find an amacable middle ground where the veg is being heated enough but you also have a little control o the cab heat.

Just an idea?

Take it this method wouldn't work properly then?

Just fishing for answers as it's the method i was thinking of using when i do eventually get round to fitting a fuel heater on mine.

[drunkmonkeyboy]

I have a heated fuel cat and it makes no difference to the heating of my truck. I also have a rear heater but thats mostly off. Is you fuel heater piped in right? you dont wanna risk your head.

Sorry if you have all ready explained how you heat your fuel. (mainly just post whoring)

[Vagrant No2]

No its a 2-door so just the front mate

Can you not fit the smaller type pipes as used for the rear heater to run your fuel heater. All the rear heaters I have felt working get very hot so the pipe size being smaller will not rob the cabin heater of much coolant . If it did Toyota would not have done it.

[RodLeach]

This might work - http://static.backcountry.com/images...2438/DTCGB.jpg