Time to replace furnace in 1969 21’ Globe Trotter and have narrowed choice (I think) to Suburban NT series and Atwood Everest series. Both are direct discharge with electronic ignition and come in 12,000, 16,000 and 18 or 19,000 BTU ratings. Suburban claims to draw 2.8 amps, Atwood 1.8. Is this a significant difference or are both acceptable/unacceptable?
Interested in any feedback on one or both units - any plusses or minuses? Also, which BTU rating would be preferred?
Unless you are planning to winter on Donner Summit, the 16,000 BTU should be more than ample to keep your coach warm. If you are thinking of boondocking, you could look into a catalytic heater. They run on LP, and have no fans or other electric parts to draw down your battery. The drawback is your holding tanks may freeze if it gets cold enough. Fan-forced furnaces have ducts leading to the holding tanks to keep them from freezing.
Since both furnaces you describe are direct discharge type, neither have any provision to connect to a ducted heating system. I'm not sure what type of heat the trailer had as factory equipment, but either one you suggest would be sufficient. If you plan cold weather use, get one of the higher rated units. Your trailer was not equipped with a grey water tank as original equipment and the black water tank was mounted above the floor under the toilet so freezing is not so much of a concern as tanks mounted below the floor. Darol
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