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Old 08-22-2017, 02:01 PM   #15
BradnKaren
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Brand: Thor Motor Coach
Model: Challenger 37LX
State: Florida
Posts: 315
THOR #6310
Quote:
Originally Posted by Joe-FL View Post
While in the Black Hills this summer we got to know two other couples that were traveling together in similar Tiffins. They were 43' DP in the 2010 to 2012 range with 3 air conditioners. On a day when the temps were almost 100 degrees our Challenger struggled to stay in the high 80's. The inside of their coaches stayed in the high 70's. We were all on the same 50amp service of course and they had 5 more feet of coach to cool.
We are experiencing the same situation in our Challenger in Florida. In the heat of the day the best/lowest we can go inside is 84 degrees. This is WAY too hot for me. I don't need 70 degrees, but something less than 80 would be nice!

Both units work fine, and the rear of our coach cools down well enough. The rear unit will cool the coach by itself at night. It's up front where the problem is. Opening the vents on the ceiling cover helps. Pushing it through the ceiling duct work is useless. Almost no air passes out of those vents, even with some strategically closed.

Have not yet done the additional vent as SuperD suggested. Husband is looking in to swapping the front a/c unit for a 15,000 BTU. Also adding snap on window covers for the windshield and side windows up front. Not sure how else to try and overcome the crappy insulation. That's all on the back burner for now as we work on other modifications and getting some warranty work completed.

We had one coach, a 32ft Bounder with just one unit. It wasn't super cold, but it got cooler than our new Challenger. Last coach was a 37ft with two 13,500BTU units and that RV would get seriously cold, even in the FL heat.
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