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Old 09-26-2012, 08:25 AM   #1
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pure vs modified sine wave inverters?

I'm looking for a battery backup system for my pellet stove. It has an auto igniter and a variable speed fan motor. There are lots of UPS inverter options, some pretty cheap and others cost a small fortune. The key variable seems to be the pure v modified sine option. So, practically speaking, do I need a pure sine wave to run the stove or not?

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Old 09-26-2012, 08:40 AM   #2
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pure vs modified sine wave inverters?

Since the stove has no sensitive electronics, a modified sine wave (cheap) inverter should be fine.

What is the amp draw on the stove? For every 1 amp that the inverter outputs it will draw 10 amps (or a little more) from your 12 volt battery.

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