Last seen: Jul 30, 2025
Er - that description you posted says that the trv shuts off the flow when the room is at the set temperature, which is also what seems to happen in p...
That's good to know - and in which case, adding anything fancy to the system to "automate" it sounds like (a) an unnecessary complication; and (b) lik...
Is that really the case? Wonโt the rate of heat loss in the room change as it cools/warms outside and thus what it is balanced for today at 1c isnโt ...
Almost but not quite a trv with remote sensor. A trv with or without a remote sensor operates principally, so far as I know, as an on off device (alb...
As I understand it these balance for fixed dT That's not what's needed unless emitters are perfectly sized (which they inevitably aren't). What's n...
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 ยฃ300) 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...
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RE: Help me keep the faith with my air source heat pump installation
@jamespa i just want it right at the end of the day, th...
By AdamK , 2 hours ago
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RE: Double or Triple Glazed Windows?
As I have reported elsewhere, we replaced all our glass...
By downfield , 6 hours ago
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How to waste energy (and time) playing with AI.
A friend of mine who subscribes to an AI service was ex...
By Toodles , 7 hours ago
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FRV valves - can you mix and match
Great video again this week @editor, I am very interest...
By Grantmethestrength , 7 hours ago
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RE: Heat Pump Books For Beginners โ Bodge Buster & From Zero To Heat Pump Hero
@topher youโre more than welcome to, yes. Iโll send you...
By Mars , 1 day ago
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RE: Fitting new shower valve ..........
Iโve never taken a chance when fiddling and changing ou...
By Mars , 1 day ago
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You should contact the council and report the unsatisfa...
By JamesPa , 1 day ago
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RE: Benefits of an extra horizontal loop for GSHP
I would deffo install an additional slinky run, especia...
By Transparent , 2 days ago
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RE: Say hello and introduce yourself
@editor fab - thanks Mars, and keep up the great work o...
By normpang , 2 days ago
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RE: Compressor and Evaporator Stratification
@trebor12345 So I think the 1st zigzag section shows so...
By ASHP-BOBBA , 2 days ago
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RE: Is this just haze or something more?
@majordennisbloodnok I was giving a talk to primary sch...
By Toodles , 2 days ago
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RE: Tesla Powerwall โ More of a โLuxuryโ Than an ROI Winner!
We had our Tesla Powerwall 3 (and Gateway) installed ea...
By Old_Scientist , 2 days ago
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Indeed. With a battery its presumably the battery con...
By JamesPa , 3 days ago
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RE: No-code, plug-and-play monitoring for your heat pump
To update an ESP device using ESPHome in Home Assistant...
By Grantmethestrength , 3 days ago
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RE: The good, the bad and the not that great โ my heat pump installation
Said I would pop back with a update. Only Mr Jesus h...
By Burtis , 6 days ago
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RE: Buffers, hot water and cooling
Thats presumably heat pump DT, what about radiator DT a...
By JamesPa , 6 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Exactly the same here. We now have 13.5kWh ...
By Old_Scientist , 7 days ago
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RE: Wood burner with ASHP - direct air?
This depends on the size of your wood burner and size/t...
By Lucia , 1 week ago
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RE: Difficult positioning of air source heat pump
@rikiarn It's a not a buffer it's a volumiser which is ...
By Lucia , 1 week ago