Battery Backup on Harman p35i

pelletkid · Nov 3, 2011

I would like to be able to run my stove when the power is out. I have a setup of 4 deep cycle battery and a 1500 watt power inverter. Here is a link to one like it on amazon.

http://www.amazon.com/Cobra-CPI-157..._4?s=automotive&ie=UTF8&qid=1320289915&sr=1-4

I connect this up to the house and shut my transfer switch. I am wondering if this will be okay to use on my stove. I dont want to hurt the new baby!

Boom · Nov 3, 2011

I rely on a Honda EU2000i "quiet" generator which would be noisier than your set up. It is reliable for about 12 hours a gallon.

How well does yours work when the power goes out? How long does it run on the batteries? I expect you would have better luck with a direct connection to the stove and maybe one other small item.

Edit: Not sure if your square sine wave is bad for the stove or not so someone else chime in please!

Jay

Delta-T · Nov 3, 2011

pellet stoves in general usually dont like the square wave or modified wave. pure sine is best.

pelletkid · Nov 3, 2011

Delta-T said:
pellet stoves in general usually dont like the square wave or modified wave. pure sine is best.

That is what i am wondering. Is the square wave going to hurt it? As far as run times i am just installing the stove so have not even tried it out yet. But the battery setup i have will run lights only for a few days with power out. If you use the coffee pot or microwave it dont last as long but if the power is out for to long i got the generater for power and then i can recharge the batterys also with that. It is a cool setup because i dont have to run the generater 24/7 just a few hours every day. So do i need to get a small pure sine wave inverter just for the stove or will the square be okay?

briansol · Nov 4, 2011

Spend the money on a pure sine if you can afford to do so. It's cleaner power and the stove (and just about everything else too) runs better on it.

imacman · Nov 4, 2011

pelletkid said:
That is what i am wondering. Is the square wave going to hurt it?.....

Modified sine wave A/C power will cause the electric motors on the stove to hum and heat up more than normal.

Stick with a pure sine wave inverter.

pelletkid · Nov 4, 2011

okay looks like i need to get pure inverter for the stove. I am thinking i am going to just get a small one for the stove and keep the big one for running everything else in the house of course i will have the pain to always hook it up separate when the power is out but the big pure inverters are to much money for me. Could i go with a 200 watt inverter? The manual says it takes 1.5 amp for normal run and 3.6 amps for start up. I think this means if you use the auto lighter but if i manually light it would it be just the 1.5 amps?

imacman · Nov 4, 2011

pelletkid said:
okay looks like i need to get pure inverter for the stove. I am thinking i am going to just get a small one for the stove and keep the big one for running everything else in the house of course i will have the pain to always hook it up separate when the power is out but the big pure inverters are to much money for me. Could i go with a 200 watt inverter? The manual says it takes 1.5 amp for normal run and 3.6 amps for start up. I think this means if you use the auto lighter but if i manually light it would it be just the 1.5 amps?

Typical pellet stoves use anywhere from 250-500 watts during start, and approx 150-250 watts running. If you plan on ALWAYS starting it manually, then the 200 watt unit should do.

IMO, get a larger 500-600 watt unit "just in case". ;-)

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Battery Backup on Harman p35i

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