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 > Electric blanket on 12dc?

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philtrains

Downers Grove, IL

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Posted: 03/10/13 12:30pm Link  |  Quote  |  Print  |  Notify Moderator

My 5W has a 12vdc outlet behind the TV. I was wondering if I can use an inverter and be able to plug in an electric blanket when we are drydocking. I have a Honda 2000 to recharge the two batteries the next day.
We will be camping at 8000' in late July in Medicine Bow Mts (Snowy Mt Pass) outside of Laramie, WY. Thanks for the input and suggestions.


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pianotuna

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Posted: 03/10/13 02:16pm Link  |  Quote  |  Print  |  Notify Moderator

Hi,

You could do that if it is a pure sine wave inverter.

One of the few good 12 volt heating devices is a 12 volt electric blanket. They draw about 7 amps and often have an auto shut off built in. I love mine.


Regards, Don
Kustom Koach Class C 28'5" 256 watts Unisolar, 875 amp hours in two battery banks 12 volt batteries, 2500 MSW watt inverter.

Eycom

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Posted: 03/10/13 02:38pm Link  |  Quote  |  Print  |  Notify Moderator

Preferring a mattress pad warmer over an electric blanket, I used a 12v queen size mattress pad warmer for 8 years. Both 12v pad warmers and blankets were marketed by Electrowarmth. Excellent product. When mine died, I found that the manufacturer now only makes one 12v size pad, 36"x60".

So, I bought a 110v Sunbeam mattress pad warmer from Wallyworld. The controls are sensitive and you'll need a pure sine wave. 2 Group 29 bats get me through the night just fine while boondocking. I've read on this board there are some 110v blankets that are compatible with MSW. However, I don't recall specific brands.


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tenbear

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Posted: 03/10/13 05:00pm Link  |  Quote  |  Print  |  Notify Moderator

My queen size, dual control electric blanket says it uses 180 watts. With an inverter it will draw something more than 15A, probably closer to 18-20A considering the efficiency of the inverter. The TV 12 volt receptacle is probably rated at 10A max, maybe less. The circuit is probably fused at 15A or less.

I don't think it would be a good idea, even if the fuse doesn't blow..


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wa8yxm

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Posted: 03/10/13 07:39pm Link  |  Quote  |  Print  |  Notify Moderator

If I understand you you want to use the 12 volt outlet on the TV antenna plate for the inverter... Won't work, wires not big enough, outlet not robust enough.

Now if you want to do a PROPER iverter install, Make sure it is a true sine wave, I've read many stories about folks who plugged an electric blanket into an MSW inverter,, Only one of them had a happy ending (he was able to repair the damage).


Nothin adds excitment like something that is none of your business
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emmasmith

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Posted: 03/10/13 08:40pm Link  |  Quote  |  Print  |  Notify Moderator

I think the TV 12 more better.
tenbear wrote:

My queen size, dual control electric blanket says it uses 180 watts. With an inverter it will draw something more than 15A, probably closer to 18-20A considering the efficiency of the inverter. The TV 12 volt receptacle is probably rated at 10A max, maybe less. The circuit is probably fused at 15A or less.

I don't think it would be a good idea, even if the fuse doesn't blow..


Farmhawk

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Posted: 03/10/13 09:42pm Link  |  Quote  |  Print  |  Notify Moderator

I would be concerned about the amount of amps being used. Using the 180w stated above that equates to 15ah, then you times that by 8 hrs, providing it doesn't have a timer and you are looking at consuming 120a overnight. You would be better served, IMHO, to run your furnace, it uses far less power than that.

Adam-12

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Posted: 03/10/13 10:22pm Link  |  Quote  |  Print  |  Notify Moderator

You have a Honda eu2000 I. Why don't u just run the Honda on Eco mode all night with the electric blankets and heater on in the rv? A gallon of gas on "Eco" mode will last all night. I do it every season.

Keep it simple and use your Honda. That's what they were designed for. Using them!


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RoyB

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Posted: 03/12/13 04:41pm Link  |  Quote  |  Print  |  Notify Moderator

The 12VDC connector you are talking is for the OTA ROOF ANTENNA PRE-AMPLIFIER. If you blow that fuse or melt down the wiring you will lose your OTA BATWING antenna use.

Probably not a good idea to use this 12VDC cigarette lighter socket for an INVERTER hookup.

We started out using a 300WATT PURE SINE WAVE Inverter for the home entertainment items including a heated blanket. Worked great for us. I keep adding more items to the Inverter and finally went to a 600W PURE SINE WAVE Inverter now.

My Inverter is remote controlled and is directly wired to the battery setup with an IN-LINE FUSE installed.

This is an simplified pictorial of what an INVERTER installation might look like for an typical trailer.


I had to have at least two batteries installed to be safe with having enough power on board to support any Inverters. Inverters are power hungary...

Roy Ken


My Posts are IMHO based on my experiences - PM me
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philtrains

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Posted: 03/12/13 08:09pm Link  |  Quote  |  Print  |  Notify Moderator

Before this post gets any older and forgotten I want to say thanks for the great input from everyone. All I have to do now is figyure out what to do. Thanks.

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