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Berg
07-02-2008, 06:48 PM
I'm in the process of building a expedition/ crawler out of a 91 XJ. I got rid of the AC and also took out the Heater/AC box. To save room in the engine bay I'm trying to figure out the best and smallest option for replacing it. I've tried dealerships but they say I can't get it without the AC Evap. Any Ideas?? Thanks for the Help.
JeffK5
07-02-2008, 08:54 PM
For a couple years I ran heavy equipment , we had these in all our cranes.

I "borrowed" one for my first Heep project , it would run you out of a soft top CJ7!
carwash
07-02-2008, 11:13 PM
who makes that Jeff? and do you just run heater hoses to it?
JeffK5
07-02-2008, 11:28 PM
I found the pic here but there a bunch of vendors on the web that sell these , or a version of these.

http://www.orrorr.com/default.asp?TID={8022F363-156F-47AF-8AA4-F823F480AE91}

I bet with a little effort you could find some local equip. parts distributors or commercial vehicle outfitter that could set you up with one of these. This one pictured fits in a 8"x8"x8" foot print ... very compact

When I had it in my jeep I plumed it from the factory heater core lines , installed it in the center box between the seats ... kicked major ass !


Just make sure you put in a by-pass line to get the unit out of the system in the summer, even when the fans off it radiates a bunch of heat.


Edit: I've also seen a ghetto/hillbilly version of this with a Mesa 96 plate oil cooler and small 12volt fan ... work pretty good...
kyrel69
07-03-2008, 10:31 AM
is that not just a "heater core" in a box with a fan mounted on it.

I am just asking b/c I would like to have heat in my jeep again but these boxes are almost $200.
94Dodge Truggy
07-03-2008, 01:59 PM
Mojave makes heater assemblies too but they are pricey. Get a used heater core and an electric fan from radio shack if you want inexpensive!
kyrel69
07-03-2008, 02:34 PM
Mojave makes heater assemblies too but they are pricey. Get a used heater core and an electric fan from radio shack if you want inexpensive!
Well I was thinking of making my own but wanted to know what made it make so much heat if it was more that just a big heater core in a box with a fan mounted on it.
JeffK5
07-03-2008, 04:30 PM
It's nothing more than a heater core in a metal box with a fan mounted on it , but it's all new and the fab-work has been done for ya... four screws and two long hoses and you got heat.

The one I had was designed to make 15,000 BTU and be no bigger than a lunch box..JC Whittney also carries a variety of these from 10'000-35'000 BTU.
kyrel69
07-03-2008, 04:47 PM
It's nothing more than a heater core in a metal box with a fan mounted on it , but it's all new and the fab-work has been done for ya... four screws and two long hoses and you got heat.

The one I had was designed to make 15,000 BTU and be no bigger than a lunch box..JC Whittney also carries a variety of these from 10'000-35'000 BTU.

Cool thanks

I like building thing and if it will same me a lot of $$$$ that is even better. I have a few heater cores that are bigger than what "jeeps" use so maybe I will make one. But I will have to check out JC whittney as well.