Gary Bunzer, the RV Doctor, shows you how to get complete control over the temperature of the water delivered to the hot faucets in a motorhome. Many RVers complain that the water is too hot. Gary shows how a gas water heater works, then explains Atwood Mobile Products’ service kit that includes an adjustable thermostat. The kit is available as a retrofit to Atwood propane water heaters. So, swap out the original, non-adjustable thermal limit switch for an adjustable thermostat.