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Boiler short cycling
Issue with boiler short cycling in system with hot water tank.
We have an ideal heating logic heat2 h15 boiler which feeds a hot water tank upstairs in the house. We have an issue where if the boiler isn’t set to 80c then the boiler will short cycle, the hot water tank thermostat is set at around 60c however if we have the boiler at 65 or 70 it will short cycle constantly, it heats up to over the set temperature and drops immediately and then between 30-60 seconds will fire back up and repeat the process. The only way to stop this is to have the boiler set to 80c and at this point it seems to modulate a lot better and hold itself at that temperature which is fine other than it makes the radiators scolding hot, if we were to have children in the house I would be worried it could burn them. Is there an obvious reason for this or will we have to put up with having the radiators so hot all of the time?
We have an ideal heating logic heat2 h15 boiler which feeds a hot water tank upstairs in the house. We have an issue where if the boiler isn’t set to 80c then the boiler will short cycle, the hot water tank thermostat is set at around 60c however if we have the boiler at 65 or 70 it will short cycle constantly, it heats up to over the set temperature and drops immediately and then between 30-60 seconds will fire back up and repeat the process. The only way to stop this is to have the boiler set to 80c and at this point it seems to modulate a lot better and hold itself at that temperature which is fine other than it makes the radiators scolding hot, if we were to have children in the house I would be worried it could burn them. Is there an obvious reason for this or will we have to put up with having the radiators so hot all of the time?