The Efficient Home Forum

I find the bedrooms in my house overheating sometimes in the morning at the same time as the hot water is scheduled on.
I think it's because the boiler gets a chance to get really hot during this half hour period, rather than just keeping warm.
I have an oil burner with no opentherm option. I haven ...

Thanks for that.

Any advice to help reduce rooms overheating when the hot water is on?

Hi

My setup:
3 zone valves - upstairs heating, downstairs heating, hot water

3 BDR relays, one to fire boiler, one to open HW valve, third opens both heating zone valves at the same time.

Oil fired boiler, no modulation or opentherm.

I have a question on the hot water priority setting. Is it ...