I talked to Atwood and they told me that the adjustable thermostat will work for both electric and gas on models with a 10E or 4E in the model number.
I have a 10E. I installed the adjustable thermostat just now. Took all of maybe 20 min. It is very easy. You cut part of the black foam off, take out the original Tstat, bend back the pins that held the old one in, install the new one with the new metal bracket to hold it in place, plug in the two wires and you are done!
The new one has a little dial on it to adjust the temp. Now when I go out Labor day weekend I'll check it out.
Model X19H Expandable
GMC Sierra Pick up
Been a camper since I was a kid, and that was a long time ago :)
From pup tents with no floors, to tents with floors and flies, to a pop up, to the expandable.