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Is One 12 Volt Battery Enough To Power An RV Furnace?
by Steve
(Nebraska)
We spent about two months in South Texas snowbirding in our 2007 Select Suite. It was a brand new unit that had been thru a dealer bankruptcy. It only had one battery in it.
On our way home we boondocked in a Wal-Mart but the furnace wouldn’t kick on. Got down to 50 degrees. We had lights, so I am wondering if one battery is enough to power the furnace. Maybe two 6 volts would be better.
Steve
ANSWER: Greetings Steve thanks for submitting your question on our Ask An RV Question Page.
To answer your initial question a fully charged single 12 Volt Marine/RV Deep Cycle Battery should be sufficient to operate your furnace (depending on outside temperature and what other 12 volt accessories you are running) overnight. Would two 6 Volt Deep Cycle Batteries
wired in series or two 12 Volt Deep Cycle Marine/RV batteries in parallel be better? The answer is a resounding yes. To learn more please read the answers I gave to Are 2 Six Volt Batteries Better Than 1 Twelve Volt Battery To Provide Power To Inside Of RV and How Do I Connect 2 or 4 Six Volt Batteries To My 12 Volt RV House Battery System.
As far as the furnace problem you experienced that may or may not have been a result of your
You also did not tell me if the furnace works when you are plugged into Shore Power, if it does then we know it was a problem with the battery, if it does not work on shore power then the furnace system itself may be the problem.
If it were my Trailer I would personally go with two 6 Volt Deep Cycle Batteries as the House Battery System.
I hope this helps.
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Happy RVing
RVing Al
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