Re: Thermostat temp for 1951 288 with Ultramatic

Posted by JWL On 2024/1/6 12:21:56

Good discussion. Another thing to keep in mind is the rating on the thermostat (e.g., 170F) is when the stat starts to open. It takes about another 10 degrees for it to be fully open. So, a 170F rated stat will be fully open around 180F. Altitude also makes a difference. Here in Santa Fe (7,200 ft. above sea level) unpressurized water will start boiling around 195F.