Well, I've decided on my next mod to the trailer.
I have not been happy with the temperature regulation provided by the mechanical thermostat provided with the gas heater. Temperature swings of +/- 5 degrees are typical, and the temperature indication is about 10 degrees low when compared to my digital thermometer. Part of the latter issue may be due to the low position of the thermostat (front of kitchen sink), but it's the swing in temperature that bothers me.
I found several documented mods online where folks replace the mechanical thermostat with a digital one (example:
http://www.klenger.net/RV_General/HV...tat/index.html)
I bought the simple Hunter digital thermostat for $24 with shipping online and it is due in this week. I am camping in two weeks' time (Indio Date Festival) and will let you all know how easily it goes and whether we like it.