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Old 11-30-2011, 07:20 AM   #1
2 Rivet Member
1969 18' Caravel
Bee Cave , Texas
Join Date: Aug 2010
Posts: 48
12 volt double mattress heater

I have been searching the web for a 12 volt full size mattress pad and am unable to find one. Called Backwoods Solar and they said the company that made theirs no longer made a anything other than a twin size. Any info would be greatly appreciated. Thanks Patti
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Old 11-30-2011, 07:44 AM   #2
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2011 25' FB Flying Cloud
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Heated Mattress Pads - Heated Mattress Pad - ElectroWarmth

Check this.
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Old 11-30-2011, 08:08 AM   #3
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1977 31' Sovereign
1963 26' Overlander
1989 34' Excella
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Their catalog for 12 volt units lists only the bunk warmer that only is 36 wide. They have lots of 110 volt units but you would need a inverter to run them. Wattage would be a concern, to get the right size inverter.
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Old 11-30-2011, 08:16 AM   #4
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1981 31' Excella II
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You are going to need a generator or shore power to run something like this for long so you might as well go with something that is AC powered. To get 100W of heat with 12V you need something like 8A of current. To get 100W of heat at 120V you need only 0.8A.

10A will suck an average battery down in less than an hour.

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Old 02-16-2012, 12:43 PM   #5
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Tehachapi , California
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We have the ElectroWarmth queen size 12 volt mattress pad (with twin controls) we bought about 10 years ago. Too bad the company dropped them. For you, I would suggest getting 2 of their Bunk Warmers and get a duplex cigarette socket adapter. Yes, they do draw about 6 amps when set to High, but the lower you set it the more it cycles on and off. I set my side on High about 15 minutes before retiring (to take the chill off) and then "2" for the night. The battery draw is negligible for a good night's sleep.
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Old 02-17-2012, 10:06 AM   #6
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1969 18' Caravel
Bee Cave , Texas
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thank you Kirk, I just called the company and yes, they had no call for double or queen size pads.....he said that you cannot overlap the two bunkbed I guess we will still keep looking ....perhaps some other company will see a need. Thank you for you info

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Old 03-16-2012, 05:07 PM   #7
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Saint Petersburg , Florida
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To be honest, go to your local hiking store or check online for a reflective blanket. Growing up, to save $ on electric bills, my folks put the reflector blankets under mattress pads. Think about it, our body heat is 98 degrees. The reflector blanket 'reflects' your body heat back to you with no need for 12V or 120V. All of us were warm all winter, and at some point, the reflective blanket kept us too warm and had to be removed. Just my opinion, but one I'll use when boon-docking.
Thanks , Derek
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Old 03-16-2012, 05:14 PM   #8
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Thanks so much...I will certainly look into that . I have never heard of anything like that. Seems we are going back to more and more of what our grandparents use to do . Patti
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12 volt

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