I recently upgraded my coach furnace to a 34,000 btu and have the old unit for sale. It always worked well for me. It is a Suburban Dyna-trail NT 30. It's rated 30,000 btu and comes complete with a brand new thermostat(I kept my old one). I think it's about 10 years old. It looks like this one...http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2450563907&category=50070
I wanted to give my Barth brothers and sisters first opportunity before I Ebay it. I will be happy to send digital pix of the actual unit, if desired. Email me with any questions, please. Thanks to Dave for letting me post this here.

Mark I'd be interested in your furnace. I'll check the area of the old furnace I took out of my Barth. If it will work, how much do you want for the unit? I e-mailed you but just in case you didn't receive it, I thought I'd better post here. Dennis