Last seen: Jun 29, 2025
@vsmith1 I too took saw that today. Pretty chuffed with heating CoP of 4.2 and hot water CoP of 3. Especially, when the weather was particularly cold.
@broadsman That's a good shout. I can't see the flow data, but can see input power and delivered heat by hour. Also, can track input electricity on th...
Really interesting thread, thanks for the insights everyone. We recently had an Aira heat pump installed, and straightaway I realised that we need t...
@andrewj Earlier with the gas boiler and Tado TRVs controlling the temperature, I used to think 18 is the right temperature. As otherwise the room use...
@mikeh It's running on an off peak schedule now. To be honest, I don't see a drop in COP. There was only 10 minutes of hot water left yesterday night,...
@mikeh I thought so too, the efficiency can't be that bad if you run the hot water once at night. Yes, maybe when you have visitors and during Christm...
@jamespa Few others on the forum mentioned about the 18 degrees too. But, the design engineer didn't budge. I wonder whether that's to keep the existi...
@mikeh Watched your latest YouTube video today. Thanks for the good work. In the video you talk about the hot water schedule during off-peak hours. ...
@transparent As it was a retrofit, changing 10 mm microbore to bigger pipes was out of question. Changing pipework for a three storey house would have...
Thanks @judith. Definitely, the upstairs bedrooms get a lot warmer, they are all exceeding 22 degrees and staying at that temperature steadily. I have...
Thanks @jamespa for the pointers. There are TRVs on all the rads, but they all are fully open. We have 10 mm microbore to the radiators. Let me check ...
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