electric ac heater on invertor

[sourdough]

I have a 1500W invertor and a AC 800w plug in heater. The inverter doesn't seem to recognize it. No power, heater does nothing but works fine in house. 800w microwave and 600w water kettle work fine with the inverter. I noticed the heater has a two prong plug, no ground and the micro and kettle have the three plug with ground. Might this be the problem, inverter wants a 3 prong ground plug

[booster]

Originally Posted by sourdough

I have a 1500W invertor and a AC 800w plug in heater. The inverter doesn't seem to recognize it. No power, heater does nothing but works fine in house. 800w microwave and 600w water kettle work fine with the inverter. I noticed the heater has a two prong plug, no ground and the micro and kettle have the three plug with ground. Might this be the problem, inverter wants a 3 prong ground plug

If it has an electronic control it may be a wavefrom issue with the inverter, especially if it is modified sine wave. Startup current is also very high on some heaters so it could be tripping the inverter high current limit.


You will need a lot of battery capacity to run an electric heater and get any real benefit for more than a short time.