Adding a second heater? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 09-28-2000, 10:25 PM Thread Starter
 
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Adding a second heater?

I picked up a heater today out of the junk yard, it is pretty much beat up but I might be able to get it to work. Its out of a semi truck and it has 2 small electric motors on the back side, pretty neat considering it was free. Do I hook the water lines up in series with the primary heater core water lines?
Also, where can I put this thing? The thing measures 16" x 7" and with the fans is 7" deep. If I laid it with the heat blowing up I could lay it on the floor where the console is now and then vent the heat where I want it. Or I could mount it under the dash in the middle and blow the heat back. Any more ideas?

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post #2 of (permalink) Old 10-02-2000, 09:50 PM
mindbender
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Re: Adding a second heater?

I bought a used rear heater unit from a van. Mounted it under the dash in the middle. Switched to the left of it on the dash. I spliced into the original heater hoses in the engine compartment and hooked them up in parallel so that the heated water goes through the original heater or auxillary heater. I also put an inline value to turn the hot water off from flowing through the auxillary heater unit. I also routed all of the original heater vents directly to the defrost. There was some problem requiring modifying the defrost ducting when I installed the auxillary heater unit. Essentially, I made a wider but less thick piping to carry the hot air to the defroster. HIH

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