Took our Northstar/Texan TS1000 into Chaco Canyon for a few days over the weekend. Weren't expecting real cold weather so didn't top up with propane before we left. Temperatures dropped to 6 degrees F overnight. We don't mind sleeping at those temperatures but the water pipes will freeze. Hadn't realized until then that a thermostat which ranges from 50-90 degrees is inappropriate in a camper. Keeping the camper at 50 degrees overnight when it's 6 degrees outside will consume a lot of propane and electricity. Keeping it at 35 degrees would have consumed much less fuel. Our camper has the OE Hydrotherm thermostat. Has anyone swapped out their thermostat for one with a more appropriate temperature range, say 30-80 degrees? If so, what brand is it and where did you buy it? I realized afterwards that I could have unscrewed the thermostat from the wall, tilted it a few degrees and altered the temperature range say from 30-70 but I didn't think of it at the time. (if it has a typical mercury switch and I think it does)