Quote:
Originally Posted by pinballlooking
Yes I was replacing a Bosh AquaStar 170V.
I charged up my new boat battery connected up my real sine wave inverter 150 watt 300 watt peak. It ran the new tankless heater fine while I was running hot water.
The battery is 50 AH we would use it then turn off the inverter off until we needed hot water again. It is good to know we will have hot water if the power goes out.
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I would be really careful that the inverter is pure sine wave, not modified because there is a lot of electronics (furnaces with ECM motor controls, for example) that will be destroyed by modified sine wave inverters. The ice storm we just went through forced a lot of people to get cheap generators to run the furnace or boiler, just to have the electronic board blow.