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Old 10-26-2015, 04:40 PM   #1
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Electric Blanket /Solar

Hello. I'm really new here. Love all the info. However I was wondering if I could get a few suggestions for a electric blanket of some source for my queen bed. We have 1960 watts for solar panels and 1140 amp hours battery configuration. 6/6volts wired to be 3 sets of 12 volt. Thank you in advance for the help!!
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Old 10-26-2015, 05:15 PM   #2
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Originally Posted by pappa_bear View Post
Hello. I'm really new here. Love all the info. However I was wondering if I could get a few suggestions for a electric blanket of some source for my queen bed. We have 1960 watts for solar panels and 1140 amp hours battery configuration. 6/6volts wired to be 3 sets of 12 volt. Thank you in advance for the help!!
pappa_bear
We've been using a truckers 36" x 60" bunk warmer sideways on our queen bed for 10 winters:
https://www.iowa80.com/DirectionsWEB...FYM_aQodZsMJtQ
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Old 10-26-2015, 05:57 PM   #3
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When you write 1140 amp-hours, is that at 6 V or 12 V. At 6 V, that is 7 kW-hr and 12 V it is about 14 kW-hr. You have about 50% available if you are not to drop below 50% Status of Charge (SOC). Need to know what is the wattage of your blanket. My wife uses her heating pad for back but it is only around 60 W.

Googled power required for an electric blanket "... In fact, all warming blankets consume only around 75 – 100 watts (per side on Dual controlled models) when used on HI. However many people set their controls around #5 or lower thus effectively halving that wattage to 40 – 50 watts. For eight hours, this amounts to approximately 0.35kW-hr.

You have either 3.5 or 7 kW-hr usable energy (50% SOC) so an electric blanket sounds completely usable.

Reed and Elaine
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Old 10-26-2015, 06:10 PM   #4
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Is your inverter modified sine wave or pure sine wave? The electronic controls of most electric blankets won't function properly with a modified sine wave inverter.
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Old 10-26-2015, 06:20 PM   #5
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This electric blanket is different! It uses a brick power supply to change the 120 VAC to 18 VDC. This has other benefits as well....smaller wires, more safety, more comfort. It has been reported to work well with MSW inverters. And if you have a pure sine wave inverter, it works fine as well!



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Old 10-26-2015, 06:24 PM   #6
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Like PASDAD1 said, in general, electric blankets and modified sine wave inverters do not mix. We just bought this RV friendly blanket from Costco. It uses a low voltage heating and ultra-thin wires inside. So far so good.

Safe & Warmâ„¢ Luxe Plush Low Voltage, InvisiWireâ„¢ Electric Warming Blanket
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Old 10-26-2015, 08:50 PM   #7
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Wow. Just check back, the system is 12 volt and the inverter is pure Stine 3000 watt. Thank you for all the info and definitely will be checking this out.
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Old 10-26-2015, 09:07 PM   #8
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Wow Pappa bear,, you have a nice big system...
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Old 10-26-2015, 10:53 PM   #9
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Quote:
Originally Posted by pasdad1 View Post
This electric blanket is different! It uses a brick power supply to change the 120 VAC to 18 VDC. This has other benefits as well....smaller wires, more safety, more comfort. It has been reported to work well with MSW inverters. And if you have a pure sine wave inverter, it works fine as well!



Attachment 110439
Hmmm. Mine burned out very quickly with a modified sine wave. Coincidence? Don't know, but won't try again.
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Old 10-27-2015, 02:01 AM   #10
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We use a good down comforter. No electricity required.
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Old 10-27-2015, 06:39 AM   #11
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We use a good down comforter. No electricity required.
+1 The comforter is great once we get the sheets warmed up. I wouldn't mind an electric mattress pad for pre-heat.
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Old 10-27-2015, 07:15 AM   #12
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WOW is right--sounds like you have a very "substantial" solar system. Let see here-- 1900+ watts of solar--thats like 9 or 10 large capacity panels--must be a big roof; the average 6 volt storage battery, when used in series [12volt], produces about 210 amp hours so base on six-6 volt bats, you have 660 amp/hrs [330 useable amp hour at 50%].
I dont have much solar but do have six 6-volt bats. With a residential fridge, a propane furnace and a few hour of TV watching, after genset hours, I get by fine, but not sure how many amp hours an electric blanket draws all night. Suspect it could/will all work but I have to see pictures of your roof panel array?????
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Old 10-27-2015, 09:02 AM   #13
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The OP is stating 1140 AH of battery. Must be using 6, L16 batteries.
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Old 10-27-2015, 09:53 AM   #14
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I use 2 really heavy surplus Czech army wool blankets from the late 1940s and they keep me toasty warm even if it's down in the 40s in the coach. Much better than an electric blanket in my opinion. You can find heavy coarse wool blankets at surplus stores all over the internet for about 50$ or so. Well worth it too.

They all have a chemical smell until you air them out but once they do they are just like any other blanket and with wool it will keep you warm even if it gets wet. It also breathes so you will not sweat as much as with other kinds of blankets.

I just make sure to dry clean them every year so they don't get moth eaten. They should pretty much last a lifetime.
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