Not sure how big your unit is, but Riannai suggest 150k unit for my 1100 sq ft condo with 2 full baths. It includes on demand hot water and 2 zones baseboard heat. It is a condensing boiler so the thermostat is set to go off and on at .1 degree +-. It appears to be running constantly but runs efficiently at that setting. A 30% fuel savings after replacing a conventional boiler. Savings calculation include compensation for temperature variance.
When the boiler is in 'away' mode. The temperature is set to 40". Also the baseboard circulator is constantly running to avoid freezing the pipes. Maybe that is what you are experiencing?
Quote:
Originally Posted by bigdog
My Propane furnace seems to be constantly running and not sure why ?
Stats: Trans 90 XL (90k BTU output)
Gas service tech checked furnace and nothing appears to be wrong, all 3 gas jets firing OK.
The thing is the zone thermostat (Honeywell( indicates the tempperature is set at 67 degrees, however, the room temperature reading indicates 65 degrees.
Consequently the furnace never shuts down because it is constantly calling for heat to reach the thermostat setting.
New batteries were installed in 'all' house thermostats.
Do you think I have a bad thermostat ?
Thanks,
BD
|