Last seen: Feb 18, 2026
@vsmith1 We switched from an EV tariff to cosy tariff after the heat pump installation. We run hot water twice a day during the cheap period, one hour...
@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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RE: Electricity price predictions
Sorry to derail this thread βslightly?β but back to the...
By Toodles , 8 minutes ago
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RE: Humidity, or lack thereof... is my heat pump making rooms drier?
Without knowing it, @andrewj, you've laid down the gaun...
By Majordennisbloodnok , 27 minutes ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
@tasos and @cathoderay thanks. I have some history grap...
By benson , 32 minutes ago
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I am having my existing heat pump changed to a Vaillant...
By trebor12345 , 1 hour ago
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Our Experience installing a heat pump into a Grade 2 Listed stone house
First want to thank everybody who has contributed to th...
By Travellingwave , 1 hour ago
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RE: Setback savings - fact or fiction?
@cathoderay The input power is largely determined by...
By RobS , 2 hours ago
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RE: Solis inverters S6-EH1P: pros and cons and battery options
Just to wrap this up here for future readers: The S...
By Batpred , 4 hours ago
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RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP
Welcome to the forums.I assume that you're getting the ...
By Sheriff Fatman , 4 hours ago
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RE: What determines the SOC of a battery?
I agree. Fogstar confirmed that the Seplos BMS does ...
By Batpred , 5 hours ago
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RE: Say hello and introduce yourself
@editor @kev1964-irl This discussion might be best had ...
By GC61 , 6 hours ago
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@painter26 β as @jamespa says, it's for filling and re-...
By cathodeRay , 10 hours ago
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RE: Oversized 10.5kW Grant Aerona Heat Pump on Microbore Pipes and Undersized Rads
@uknick TBH if I were taking the floor up ...
By JamesPa , 20 hours ago
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RE: Getting ready for export with a BESS
I would have not got it if it was that tight
By Batpred , 22 hours ago
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RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump
@judith thanks Judith. Confirmation appreciated. The ...
By DavidB , 1 day ago
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RE: Recommended home battery inverters + regulatory matters - help requested
That makes sense. I thought better to comment in this t...
By Batpred , 1 day ago
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Bosch CS5800i 7kW replacing Greenstar Junior 28i
My heat pump journey began a couple of years ago when I...
By Slartibartfast , 1 day ago
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RE: How to control DHW with Honeywell EvoHome on Trianco ActiveAir 5 kW ASHP
The last photo is defrost for sure (or cooling, but pre...
By JamesPa , 1 day ago
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RE: Plug and play solar. Thoughts?
Essentially, this just needed legislation. In Germany t...
By Batpred , 1 day ago
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RE: A Smarter Smart Controller from Homely?
@toodles Intentional opening of any warranty βcan of wo...
By Papahuhu , 1 day ago
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RE: Safety update; RCBOs supplying inverters or storage batteries
Thanks @transparent Thankyou for your advic...
By Bash , 1 day ago
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RE: Air source heat pump roll call β what heat pump brand and model do you have?
Forum Handle: Odd_LionManufacturer: SamsungModel: Samsu...
By Odd_Lion , 1 day ago
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RE: Configuring third party dongle for Ecodan local control
Well, it was mentioned before in the early pos...
By F1p , 2 days ago
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RE: DIY solar upgrade - Considering adding more panels
I know this is a bit old, but it made me wonder what co...
By Batpred , 2 days ago


