Using 15 amp for Class A

[KTM251ss]

I have been doing this for 10 years, I don't have a large enough service to add 30 or 50 amp so I used a 20 amp breaker with proper sized wire to a GFCI outside. From there I use a 10 GA 50 foot cord to RV and adapters. It keeps the batteries charged up and the residential refrigerator running.
This cord is very heavy for this: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

[jsmmonaco]

FIRST, LET ME SAY THANKS TO ALL THAT POSTED.........GREAT INFO........yesterday, i bought a heavy duty contractor extension cord and hooked everything up in the driveway of primary residence.............manually adjusted the ems to show 15 amp service, etc............was able to operate tv, satellite, lights, coffee maker, and furnace.............those are the things i will NEED..........i am certain fresh water tank pump and flushing electric toilet will be ok as well.................air's will stay OFF, electric on hot water tank will OFF (on propane), frig will be on propane..............no microwave, no toaster oven, no hair dryer................the test was a success............we will eventually have at least a 30 plug installed at cabin, but until then, this setup should work during our time up there prepping the cabin for occupancy..............again, thanks to you all.............