Quote:
Originally Posted by knucklehead
Good Luck finding an RV air conditioner that gives you more than a 20 degree difference. That is what I've heard since I got my first RV in 2017. Having ceramic window tinting will help, but it's pricey. I got a very high rated sun blocking tint for all the windows in my 2018 Thor Windsport 29m. $1600.00 and well worth it. Also don't forget to use the roof fans to vent the hot air out before you start the A/C up. Just one of the realities of life in a RV!!! Bob Trice
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I have two Coleman 13.5 Units.
My RV sat in Hot sun all day today on shore power with both ACs on, Main Coach set at 79F and MBR set at 80F
Outside Temperature hit 100F
The coach was at 79F all day. That feels like an Ice Box to us from the Texas heat.
Nothing on the glass, but all of the MCD shades were pulled down except for the passenger side dinette window, and shade on door. Now the awning was out on Passenger side which tends to block some heat.
Our unit can be 100 plus degrees inside with everything shut off, it takes about 30 minutes to get bearable assuming the Chassis Cabin air is NOT turned on. It takes about 2 hours to get to thermostat set point.
I have seen it where outside was 106F and inside was 82F. But the setpoint was 82F and we were driving. So Cabin air was on too.
Now having said all of that, I do recall looking at a 2019 27B Windsport brand new that the Dealer had to jumpstart to get the genny to run. They turned on both ACs. It was 95 outside. After 4 hours it was 88F inside. We had every shade pulled down. Salesman said they would fix, but I was skeptical. Before that day we considering single 15k units, but that changed, it was 2 ACs or else for us. Checking AC air was #1 on my PDI list, I had them shut every thing off to get it as hot as possible.
I haven't done anything to our AC's but leave them alone. I should say that both are ducted, but the grille vents in the front are wide open to fight off heat from windshield. The MCD blind does a very good job, because you can feel the heat on the glass side, but cool to the touch on opposite side.