Electrical Help

I just went out to verify what my coach is plugged into and what circuit breaker is behind that outlet where I plug the coach. It is a 20 amp circuit breaker and I can run everything just about except the air conditioner and probably the water heater. I never have the water heater on when not in use. One of the most important thing here is that you need to use a heavy duty electrical cord running from the outlet to the coach. My coach is a fifty amp coach, but I put a pigtail to go all the way down to 20 amp adapter.

I also can use my micro wave to warm up a cup of coffee with just the inverter when dry camping. 3000 watt inverter.