garyemunson wrote:
Fridge AND heater will be too much for a run of the mill 110 volt outlet. A heater will max out the power by itself, especially if you need to use any extension cord at all.
Yeah it's going to be on the edge. If it's an RV-type fridge, the heating element probably draws 300-325 watts (let's call it 3 amps). Typical space heater is 1,500 watts (let's call that 13 amps). So 16 amps on what could be a 15 amp circuit. In my case, my breaker panel is on the opposite side of my house from my 20 amp receptacle. It's about 75-feet of 12-gauge wire to get to the receptacle. I then have a 100-foot 14-gauge extension cord to get to the rig. I can't run the A/C or a space heater when it's parked out there (well I can but the cords get warm and the A/C will barely run). Voltage is mid/low 90-volts at the receptacles inside the RV after all that cabling. If I move it close to the house and plug the shore cord directly into the receptacle, I can run both the the A/C or heater and the fridge (300 Watt element). But I know it's on the edge.
It sounds like the OP wants to do this for long-term storage so I'd say running the fridge and/or heat on propane is not an option.