HVAC question

[noJeepshere]

Is it ok to run a heater core next to an A/C condenser like this:

I'm trying to put rear heat in my Yukon and since this body style never came with rear heat I'm kinda improvising...

 

[4xcrazy]

My '89 has an aftermarket style heater core in front of the ac evap in the rear unit, there is also a vacuum operated valve that stops water flow to the heater cores in the truck as well.

Stop the water to the heater cores when not in use and it'll work fine.

 

[Jessie James]

Yup, like 4xcrazy says.

At one point I Google'd and found a vacuum-powered valve for the heater hoses, made by Chevrolet. They also make electric ones. I think I found it on eBay. Try this link to see what is out there and you can probably either find one that is designed for your application, or make one work:

http://www.ebay.com/sch/i.html?_trksid=p5197.m570.l1313&_nkw=chevrolet+heater+valve&_sacat=0

Edit, here is one like what I was going to use:

http://www.ebay.com/itm/ACDELCO-OE-...ts=Make:Chevrolet&hash=item4ab6471d59&vxp=mtr

 

[noJeepshere]

Now I'm coming up with this crazy idea to get a self-contained type of deal that can fit under the second row to provide heat. My only real stipulation is that it needs to be coolant heated, not electric. Anyone know of something like that?

 

[Jessie James]

Why run coolant when you can just run power wires?

 

[Fordum]

You mean like a Mojave heater?

http://www.amazon.com/Flex-a-lite-6...r=1-1&keywords=/Flex-a-lite-640-Mojave-Heater

 

[noJeepshere]

Why run coolant when you can just run power wires?

I don't want to trust that kind of energy inside the cab when this could be running for hours at a time. Last winter two cars were crispy crittered because of faulty wiring to electric heaters like I'm planning. The failsafe (circuit breaker, high temp switch, etc) failed and the unit got so hot it ignited the carpet or whatnot. My mechanic in Fairbanks wouldn't even install electric heaters, only coolant ones.

 

[noJeepshere]

You mean like a Mojave heater?

http://www.amazon.com/Flex-a-lite-6...r=1-1&keywords=/Flex-a-lite-640-Mojave-Heater

Found that last night, that is what I'm going to out under the seat for the rear passengers.