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Thermostat vs. Boiler Short Cycling
I am trying to perfect my steam heating system, and I have read in this forum quite a bit about boiler "short cycling". And I am trying to figure out if my boiler is short cycling or not.
When my system is in heating mode, it sometime happens that the boiler goes on and off several times over a period of let's say 30 mins, until the cycle ends. However, based on what I have observed, I think it is the thermostat that is turning the boiler on and off, not the pressuretrol. My reason for thinking this is that I clearly see and hear the thermostat click on and off every the boiler goes on and off. So, I have two questions:
1. If my boiler is short cycling, would this cause my thermostat to go on and off, or would the thermostat stay in the "on" position during the "short cycling" process?
2. If it is in fact my thermostat that is causing the boiler to go on and off, why is it doing this? There is no radiator in close proximity to the thermostat, and no sunlight or other external factor, so I don't understand why the theromstat would be shutting off quickly. Is it possible that the heat is rising from the boiler room in the basement through the sheetrock wall to the thermostat and causing it to reach the target temperarture quickly and therefore shutting down? It's just a theory of mine, but I have no other obvious explanation.
Any help would be appreciated!