I've got fed up reading the meter and I'm trying to set up the system to use as little gas as possible now our boiler is fixed.
It's an old ideal classic ff380 non condensing. 20 rads and a 15/60 pump serving a 5 bed 3 storey.
Heating is on from 6am to 11pm, wall stat auto adjusts the temp but averages 18c, it drops to 12c overnight.
What would save us money by using less gas.
1) boiler on 6 (max) at 82c - quicker heat up
2) boiler on 4 around 72c - less gas but longer heat up
We have a cylinder too set at 60c and also a very important factor pump speed.
What cycling is acceptable, I can't get my head around this. On speed 2 all rads are warm but boiler seems to cycle a little more, perhaps on for 7-10mins before stopping briefly allowing the pump to move more water.
Pump speed 3 seems to have less cycling but a lot noisier and potentially introducing air from the impeller and would it be moving water too fast to heat properly?
Currently have it on setting 4 and pump speed 2. But I'm curious if 6 max and pump speed 3 would save gas.
We need it on all day and temp can't go any lower. Trying to find the sweet spot of comfort v cost.
It's an old ideal classic ff380 non condensing. 20 rads and a 15/60 pump serving a 5 bed 3 storey.
Heating is on from 6am to 11pm, wall stat auto adjusts the temp but averages 18c, it drops to 12c overnight.
What would save us money by using less gas.
1) boiler on 6 (max) at 82c - quicker heat up
2) boiler on 4 around 72c - less gas but longer heat up
We have a cylinder too set at 60c and also a very important factor pump speed.
What cycling is acceptable, I can't get my head around this. On speed 2 all rads are warm but boiler seems to cycle a little more, perhaps on for 7-10mins before stopping briefly allowing the pump to move more water.
Pump speed 3 seems to have less cycling but a lot noisier and potentially introducing air from the impeller and would it be moving water too fast to heat properly?
Currently have it on setting 4 and pump speed 2. But I'm curious if 6 max and pump speed 3 would save gas.
We need it on all day and temp can't go any lower. Trying to find the sweet spot of comfort v cost.