Just a note but the heater element for the Coleman Mach 3 roof AC is 1500W/5600BTU. With a nightime OAT of 45ish, it reached 76F inside and was going up when had to be throttled back.
Downside is that it moves a lot of air and is not very quiet (a much lower LOW fan speed would be nice)
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Looking for a 24/17 in or near Florida.
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