Adding a second heater? - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 09-28-2000, 10:25 PM Thread Starter
Join Date: Dec 1999
Posts: 552
Thanks: 0
Thanked 0 Times in 0 Posts
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?

87 wrangler - 258
muddog is offline  
Sponsored Links
post #2 of (permalink) Old 10-02-2000, 09:50 PM
Posts: n/a
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

Mindbender 85CJ7 I258 [img]/wwwthreads_images/icons/smile.gif[/img] 40 head ported polished [img]/wwwthreads_images/icons/smile.gif[/img]
Jacobs [img]/wwwthreads_images/icons/smile.gif[/img] 31" [img]/wwwthreads_images/icons/smile.gif[/img] 999 insulated hard top
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome