Cave Campers
Not sure if this has been raised here before but here is a company selling very basic and light truck Campers: Cave Truck Campers
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that heat pump, I see they make a bigger one also. I can tell you another application for that could be in a 30' size 5th wheel, in front basement, Tap into one of the heater floor ducts and use it to to cool the front bed room instead of a 2nd roof unit. If you have 30a service, run a separate cord for this unit and plug it into the 20A outlet on pole.
