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Old 03-13-2010, 08:44 AM   #1
dentedvw's Avatar
Join Date: Jul 2009
Location: Lansing, MI
Posts: 236
Year: 1998
Coachwork: Thomas SafTLiner
Chassis: FE
Engine: 5.9 Cummins
Rated Cap: 60
how to choose what size RV furnace?

We would like to get an RV furnace, but how do I know what size we need?
Our bus is 31' long, so imagine about 28 feet long inside.

There are several listed in the Craigslist for our area, one is a 24k btu, another is 16k btu. Which would work well for us? The 16k is much, much cheaper. But it's all for naught if it doesn't heat the bus properly.
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Old 03-13-2010, 01:27 PM   #2
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Join Date: Jun 2004
Location: Roswell, NM
Posts: 3,587
Year: 1986
Coachwork: BlueBird
Chassis: 40 ft All American FE
Engine: 8.2LTA Fuel Pincher DD V8
Rated Cap: 89
Re: how to choose what size RV furnace?

I would get the bigger one. I think that is what we have in our 22 ft Class c. It is an old suburban, heats well and fairly good on LP. I have read posts on RV forums where they are energy hogs and the fan will drain a battery down over night. We have used it during the winter in GA, NC and TN (mountains). We also used it a few times in the fall in NM. It quit working so we didn't use it herein TX. We tend to use electric since it is included in our site rental.
This post is my opinion. It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.
Fulltime since 2006
The goal of life is living in agreement with nature. Zeno (335BC-264BC)
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