Bluetooth T-stat upgrade for ffurnace and A/C

This is a nice little upgrade I did - Coleman / Airxcel Bluetooth T-stat

It's nice to be able to turn up the heat a tad from outside the rig whilst sitting around the campfire. I get the interior a little warmer before giving up on the campfire.

Another time it's very useful is to turn on the heat while I'm driving, to warm up the interior of the rig before I reach my destination.