Has anyone installed one of these..... Atwood propane furnace

http://www.atwoodmobile.com/Products/furnace/7900.cfm

A new version, the 8012 only draws 1.8amps.  $400 with free shipping

http://www.ducktec.com/hydroflame-furnace.htm

I have a the older 7900 verssion  I bought a couple of years ago, but
haven't gotten around to installing it.  Thinking of installing it into
the small compartment between the fridge and the circuit breaker.

It requires 20.5" of straight depth from outside wall of the van to
interior cabinet face....probably a bit more than to the front of the
cabinet face...so guessed I'll have to make a little frame around.  Also
thinking of replacing that ugly front grate with something more
attractive....or at least paint it grey to match the cabinets.

I'm wondering if it would hurt anything to shorten the flu exiting the
back just a bit...sure Atwood would advise "No"...but ????  Atwood says it
has to be installed perpendicular to the van side wall...can't install
under the seat, for example, and turn the vent 90 dergrees to exit.

Looking for install tips if someone has already "been there..done that".

Warren C.