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Last seen: Nov 9, 2026
In the context of a single zone heat pump system a valve that self balances very slowly for equal (or set) temperature would avoid the need to adjust ...
For me: Two full surveys (each taking 3hrs, one of which cost me £300) got to 16kW. Correcting for obvious errors in the surveys got to 10.5kW. Meas...
Ok. The key point I think you have made is that the error only occurs only during the disinfection cycle. That's getting quite deep into NIBE specif...
@matwin If you plan to commission one it might be worth checking that at least one installer will take notice of a blower test. Some can be a ...
1. I certainly did, I found two installers who would accept evidence of actual heat loss and factor it into their calculations in a way which meant th...
Many people with heat pumps heat water only to say 48 with a weekly legionella cycle (often using the immersion) taking it to 60/65. This should all ...
Good spot on the data. The physical size of the 7,kW model is different however so I don't think it's likely the 5 is entirely a SW mod of the 7, how...
Fair enough, I was just checking I hadn't missed something! Thanks for replying.
This is so important. For my money householders need to know how to balance radiators using the lsv. Why? Because, given that its unlikely that radi...
The other important point about wc is that the controller gets the signal to change what it is doing at the same time as the principal driving factor ...
Surely you can 'correct' a mildly oversized rad by turning down the lsv during the balancing process? Certainly that's what I did with my installatio...
As @ashp-bobba says there are lots of variables. My house takes 3-6hrs to change temperature by a degree. I have one room with a fancoil that respon...
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Latest Posts
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
That’s certainly a popular and widely held stance, but ...
By Majordennisbloodnok , 9 hours ago
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RE: Adventures in heat loss calculations
@rob-of-york In my experience, energy used to supply DH...
By Toodles , 11 hours ago
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Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
By bontwoody , 12 hours ago
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RE: Why don't people choose heat pumps?
Absolutely nothing in the regs prevents this, nor does ...
By JamesPa , 20 hours ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
@jamespa I agree, the efficiency of Cosy Cooler ought...
By Rob of York , 21 hours ago
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RE: How much of your renewable and home setup would still work if the internet went down?
I think you're right! 🤨
By Transparent , 1 day ago
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RE: Renewables & Heat Pumps in the News
ECO4 muddies the water somewhat, and then some. I thi...
By cathodeRay , 1 day ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
If there is a drain nearby that's exactly what I would ...
By JamesPa , 1 day ago
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RE: DIY powerflushing tutorial
This is what bacterial growth in UFH loops looks like. ...
By Pirate Rich , 2 days ago
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I think that CCGT plant in Lingen is more likely to suc...
By Transparent , 3 days ago
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RE: Heat Geek installations: share your experiences
@l8again fwiw my experience (Valiant but not with heat ...
By JamesPa , 3 days ago
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RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
@etchedpixels thank you for the advice paid cash all...
By Chilli304 , 4 days ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders An interesting conversation to have ...
By Rob of York , 5 days ago
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RE: Electricity price predictions
@rob-of-york sounds like a term that Heidegger would...
By Papahuhu , 5 days ago
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RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 5 days ago
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