Forum Discussion
JaxDad
Jul 26, 2015Explorer III
j-d wrote:
A moving RV has tons of heat transfer. Very hard to beat the losses driving highway speed in beating sun.
While there is heat transfer, running the engine also means you have the use of a very powerful a/c driven by the engine. The base Ford system for instance is 48k BTU output, and they have models that go as high as 114k BTU. the problem is the fan in the dash can't move as much air as the system would require to utilize all that cooling power.
We help it along by opening the rearmost roof vent and setting the chassis a/c to dash output and pointing the air down the center of the coach. The open vent sucks the warmest air off the ceiling and by doing so pulls the cooled air farther back to replace it.
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