I tried three portable electric heaters going on at once and hated it. They are always in the way and I still had to run my gas unit to keep the underbelly heated. Now I can heat my hold camper at once with the cheap heat system and stay very warm. I have camped with both side of this debate and can honestly say that the cheap heat system can't be beat. I will never own another pull camper without this system in it. I only use my 50 amp shore cord and never run extra electric cords for more electricity than I pay for in my daily campground rate. All I can say is to check this system out and maybe you can see for yourself that it might work for you. The cheap heat system is not for everybody like running three portable heaters are not my glass of wine for me!!!!