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Old 10-01-2012, 06:13 PM   #1
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Electric blanket on inverter

Hi,

Has anyone run an electric blanket(135Watts/queen size) for a night on the inverter? I have a 1200W inverter and 2 house batt's(Trojan 105's).
Would be nice to be able to use it on chilly nights with no shore power(won't run genny while sleeping!).
Appreciate any advice/experience anyone has had doing this.

Thanks,
Jim
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Old 10-01-2012, 06:18 PM   #2
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I think there's a 2-part answer to this.
First, how often the blanket cycles on (how big the draw is on the batteries overnight).
Second, if your generator has an "auto start" if your batteries go below a certain level.

Maybe someone with more direct experience can answer better than I!

Mark
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Old 10-01-2012, 07:56 PM   #3
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seadogjim.....There are two types of inverters....Pure Sine Wave and Modified Sine Wave. Most likely yours is a MSW. The MSW inverters make what they call dirty power. It's not like like the power you get at your house or the power produced by a Pure Sine Wave inverter.

With all that said, a lot of electric blankets and some small appliances don't like MSW power and will be ruined by it.
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Old 10-01-2012, 08:05 PM   #4
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If modified sine wave, read here about a recent issue that almost started a fire:

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Old 10-01-2012, 08:06 PM   #5
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Quote:
Originally Posted by Diplomat Don View Post
With all that said, a lot of electric blankets and some small appliances don't like MSW power and will be ruined by it.
Yep, exactly. And no real way to know in advance till you try it.
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Old 10-01-2012, 08:51 PM   #6
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Since the inverter came with the motorhome I would assume it's a MSW(less expensive). It seems to operate the high def Samsung TV just fine but who knows about an electric blanket.
The issue of a potential fire is certainly troubling, might be enough to make me not try using the blanket on the inverter.
Has anyone actually used an electric blanket on an inverter?

Thanks,
Jim
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Old 10-01-2012, 08:59 PM   #7
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Quote:
Originally Posted by seadogjim View Post
Since the inverter came with the motorhome I would assume it's a MSW(less expensive). It seems to operate the high def Samsung TV just fine but who knows about an electric blanket.
The issue of a potential fire is certainly troubling, might be enough to make me not try using the blanket on the inverter.
Has anyone actually used an electric blanket on an inverter?

Thanks,
Jim
I've never used one on an inverter, but I imagine since they 'pulse' (draw current) on and off all night long, I would imagine that would be hard on the inverter.

I know I bought an electric blanket and when I read the instructions it was stated not to use it with a generator (they didn't say why, but I guess it has to do with it pulsing on & off all night)

Just my thoughts, IAN...
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Old 10-01-2012, 09:00 PM   #8
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When we had our 03 Providence I accidentally let the electric blanket plugged in when I switched on the MSW inverter. It fried the controller plugged into the inverter outlet.

You can't just buy a replacement controller either.
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Old 10-01-2012, 09:09 PM   #9
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Not quite an electric blanket, but they do make 12 volt DC heated throws that would help keep most of you warm. I would assume those are safer.

Amazon.com: 12 volt heated travel blanket
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Old 10-01-2012, 10:37 PM   #10
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With a MSW inverter an old bimetalic controller on the blanket will work just fine. The newer Pulse width modulated controlers will fry. Used an electric blanket with an inverter on the boat for years.
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Old 10-01-2012, 10:52 PM   #11
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We use our down quilt and it keeps us toasty warm....even when the inside RV temp drops into the low 50 or high 40. This usually means the outside temp is in the 20's. If this happens we're in the wrong part of the country and it's time to head further south.
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Old 10-01-2012, 11:08 PM   #12
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I have a small(18X12) heating pad and the original box that says "Printed in 1944". It's a Casco Style No. H 1211, Part No. 11685, which I believe is the part number for the label on the box as there is a different number for the instruction sheet. Too late tonight to go look in my MH to see what the pad says. Would that work on a MSW inverter? I want to use it to keep my feet warm.
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Old 10-02-2012, 01:13 AM   #13
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We use a down comforter - usually is too warm unless really cold, then it's just right. Also a Olympic catalytic heater is a good thing to have - propane with no electric needed whatsoever.
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Old 10-02-2012, 02:41 AM   #14
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We run electric blankets when we are in deserts in winter in the OKA. Controls are all electronic, and the inverter is a pure sine wave unit.
Batteries are 512Ah so would run the blankets all night, but generally only use them on the timer to warm the bed up and then switch off after 75 minutes. Couple of quilts keeps us warm enough during the night even though the "bedroom" has a canvas roof.
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