The advantage of the Cheap Heat system is that it ties into your duct work which is frequently used to heat basement compartments with plumbing and tanks. Some manufacturers also run water lines near the flexible heat carrying hoses. This is what keeps everything from freezing. Using supplemental heaters, may make it warm inside the coach, but they do not keep the tanks or plumbing in compartments from freezing.
If I were to spend a season where the temps went below freezing for a majority of the nights, I would definitely invest in the Cheap Heat system. Either way propane or electric, I would have a backup. If the propane ran out, the electric is always there. In emergency, the on board generator would provide enough power for the Cheap Heat system to keep the coach from freezing.
Fred
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