Answer: Probably not. We assume your heat pump is part of a combined unit with your air conditioner. We have two roof-top AC/heat pump units. Our RV is not even wired to allow us to try run them off the battery/inverter. If we are boondocking and need to use the AC or heat pump, we turn on our generator.
It’s likely that your RV is not configured to allow running the AC/heat pump from battery power. Even if you can do it, it would probably deplete your battery bank very quickly. But who knows, perhaps your RV is non-typical in this regard. If so, we suggest you contact your manufacturer for their take on the subject.
The following chart provides some information on electrical draws of various appliances.
Appliance Wattage and Amperage Consumption (Approximate)
Air Conditioner 13,500 Btu
Air Conditioner 15,000 Btu
Converter (30 amp)
Converter (40 amp)
Converter (75 amp)
Microwave 450 Watt
Microwave 650 Watt
TV Satellite & Receiver
Washer/Dryer (RV type)
* Normal running operation amps/watts; start up may draw more power ** See wattage info for your specific heater