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Old 12-02-08, 11:45 PM   #18 (permalink)
Bogo
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Join Date: Feb 2008
Location: On the farm
Posts: 665
Quote:
Originally Posted by missouriman View Post
just a heating pad under your feet can make a below 0 night better!!
Somebody else pointed these out in another thread.

ElectroWarmth® Bedwarmers - 12 VOLT ELECTROWARMTH® BUNK WARMERS

Their energy use is well within line for what they do, but a big second battery is a must. They are a 12VDC heating pad you put under you. A single bed one at 100% duty cycle wouldn't drain a 100AHour battery's useful capacity over night. They say 50% duty cycle is much more typical. A group 31 deep cycle battery would do fine. In fact it should do one of them and a compressor refrigerator too.

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