My suggestion would to use a Coleman Mach 1 PS (11,000 btu) in the rear and a Mach 3 PS (13,500 btu) in the front. The Mach 1 PS draws 9-11 amps and the Mach 3 PS draws 10-13 amps. Even at 95 degrees ambient temps you would only be drawing 19 amps @ 115 volts. Even at 115 degrees your draw would be 24 amps @ 115 volts. I find this setup works well in Texas in the summer in my coach.
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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