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Last seen: Aug 25, 2026
Contrary to what I said earlier I do agree that mixing valves are likely necessary because of the radiators. If there werent radiators then they woul...
Your pessimism may well be justified, but you seem to want to do something. So your recourse potentially is to The builder The Installer NHBC i...
@tobydeh based on the info provided I cant see any reason to suppose that its anything other than largely correct and also every reason to suppose tha...
@tobydeh Do you have your meter readings for the same period? Also is there a pie chart for delivered energy similar to the one for consumed? Also ...
OMG Pulse modulation thermostats attempt to switch heat sources on/off in a 'clever' fashion to reduce temperature swings. It's debatable whether t...
Heating systems for HP's are set up so that the hp either supplies hot water to heat the dhw tank or hot (but generally cooler) water for the space he...
It is a fundamental feature of ashps, traceable pretty directly to the laws of thermodynamics, that they are more efficient if the temperature of the ...
Assuming I understand the question correctly (which I may not) then yes there is. Plot COP vs flow temperature, then work out the COP (at some repres...
As you say its encouraging that MCS recognises it has shortcomings. Through my two year old yet-to-conclude-heat pump journey I have come to questio...
kW/s, that's not a real unit (yes I know it's what heat geek says). You mean kW. The heat geek figures are a bit better than I remembered, 10mm mic...
We are slightly confusing two things here, the total system capacity (~12kW?) and the emitter capacity (linked to pipe size). They are separate but l...
OK 30MWh/yr is quite high. Can you tell us something about your house and water usage pattern?
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Degrees of Separation
Latest Posts
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 3 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 3 hours ago
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RE: Questions about A2A for heating as well as cooling
@donciccio I would suggest that you take a "fabric-fi...
By Rob of York , 3 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
Any idea how efficient your gas boiler is? Is it a 50 y...
By Old_Scientist , 8 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 20 hours ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 1 day ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 2 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 2 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 2 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 3 days ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 6 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 6 days ago
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