Golden_HVAC
Fulltime, CA, USA
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Joined: 08/19/2003
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You froze for nothing.
Even if you used every bit of power from the batteries, then engine battery would have started the engine, gotten you to the campsite, where the battery charger would have recharged them on shore power.
The furnace should draw about amps per hour it is running, and your pair of batteries contain about 200 amp hours of power. You could have parked there two days and not froze, and still had plenty of power in the batteries on the morning of day 3.
Fred.
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John&Joey
Some Location
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Joined: 05/20/2007
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Another way to look at it (and other RV stuff) is they were made and sold to spend the night or two without full hookups.
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Bea PA
Waynesboro, PA, USA
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Joined: 12/28/2000
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We have often run our furnace all night in cold weather and not drawn the house batteries the whole way down.
Bea PA
2004 Winnebago Journey
2008 Saturn Vue
1998 Venture Van
Brake Buddy/Remco Pump
2003 Gold Wing 1800 recently triked (Big Red)
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jauguston
Bellingham, WA
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Joined: 07/03/2005
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As a generality figure one group 27 battery or equivelent per night when it is cold is about what "most" furnaces will need.
Jim
2005 Coachman Sportscoach Elite 402 40'
350hp Cat C-7 w/MP-8
7500w Onan quiet diesel generator
6-Kyocera 130w solar panels SB3024i MPPT controller
Pressure Pro TPMS
1987 Suzuki Samurai tintop Toad w/VW 1.6 turbo diesel power
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