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Steam Heat Thermostat

rbenny
rbenny Member Posts: 1
I have a fairly new heating system about 4-5 years old. A Burnham boiler and a Riello Burner. I have a Honeywell mechanical thermostat. Currently the way it is setup, I set the thermostat to 63 degrees. The system turns on about 62 and turns off at 71 degrees. I am considering installing a digital thermostat. I have been told you cannot program a "range" into the thermostat. If you set it to 68, the system turns on at 67 and turns off at 68 or 69, depending on the thermostat.
Which way is more energy efficient. A large swing (8 degrees) or a small swing (2-3 degrees)
Thanks
Rich B
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