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Last seen: Aug 23, 2026
@colinc good luck with your project! UFH is the absolute best from both comfort and ASHP efficiency. We have it in the extension and wish we had elsew...
Yes! Our method of working is one of us does the analysis/ research (which is me on renewable stuff) and the other checks the logic and arithmetic. It...
Quite honestly I don’t know. We’re very pleased with our system, and are gas free, so we save money each year. But the payback time (at current pric...
we have a 7kW Valliant which has been running quietly and well for a year with a very satisfying SCOP of 4.7. Other people have had noise issues eg @j...
I’ve been reading to find out about the Bosch and you’re learning fast. Just for info our Vaillant is giving a cop of 5-6 in this mild weather. Our de...
From the time I was a physics undergraduate it’s been 25 years off. I’ve now retired and it’s still 25 years off. So it’s had a lot of investment th...
Sadly I think it is mad. If the BUS is not granted for too low a system SCOP (I forget the exact system interface definitions and numbers) then who pa...
The air changes per hour in the leakage values is the most guessed parameter. Assessors have guidelines based on the house build date. If you have an ...
@mike-patrick Michael De Podestahas had extensive ‘fun’ with EPCs. He eventually got the basic mistake of rating an Ashp as ‘poor electric heating’ ch...
Back again to the Spanish blackout this was in the Economist last week Which says need for a change of operating procedure. Relatedly (but less...
@jamespa but is MCS capable of knowing the difference between a good, indifferent or bad installation? They seem to first check the paperwork is prese...
Since the combination of fitting plus scaffolding makes a big proportion of the price it doesn’t look as if it matters much. I’m surprised that mono-c...
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Degrees of Separation
Latest Posts
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
Volumisers are normally plumbed so that they are in the...
By JamesPa , 3 hours ago
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@toodles possibly. The £9k labour charge for 4-5 days w...
By AndrewJ , 7 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 , 11 hours 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 , 1 day 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 , 1 day ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 1 day ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 1 day ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
There is scope for product development here. I for one...
By JamesPa , 1 day 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 , 2 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 , 5 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 , 5 days ago
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RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
By Majordennisbloodnok , 5 days ago
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