I need to replace the old Suburban NT32CA furnace in my '75 Sovereign 31. Would an NT20 be big enough to do the job. Also, I have not been able to find any information on what all of the letters stand for in the Suburban model numbers. Any help?
I would put an NT-30 SP back in. An NT-20 is a little on the small side since you are up north and you have a big trailer. The price difference is not that much.
If an NT30 SP is going to cost you as much as two NT-20 models put in two NT20 units and put one in the front and the other in the back. Do you have a rear bedroom model? My furnace, when it works, is plenty but the heat back to the bedroom is not great since it is the longest distance from the furnace. They should have run two lines back there. There is a guy about 90 mins from here who said he would sell me a new NT30 SP for $300. He has an RV new and used parts business and he says he buys 100 of them at a time and he must not mark them up that much to sell for $300.
It makes you wonder what these things really cost to make.
I do have a rear bedroom model. I replaced the original ductwork with the same configuration, 2 - 4" flex ducts that went into an 8" round under the shower then into a 2 1/2" x 10" under the bath sink and into the bedroom. I don't know how well it worked because the furnace didn't work when I bought the trailer. I would certainly be interested in a new NT30 at $300. if that is possible.
2010 30' Classic
Vintage Kin Owner
South of the river
, Minnesota
Join Date: Dec 2009
Posts: 4,169
Rule of thumb is 1,000 btu/h per foot of trailer length will keep you warm down to subzero temps
Sure you can put a 20,000 btu/h heater in a 30' trailer. It will not keep the trailer at 68 degrees when temps drop to around zero or at temps around freezing when the wind is strong.
__________________
To learn to see below the surface, you must adjust your altitude
This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.