Last seen: Aug 1, 2025
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 £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...
Latest Posts
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That wasn't quite what I was trying to suggest. My po...
By Majordennisbloodnok , 5 minutes ago
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RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
All noted and accepted and as I say I am sorry that you...
By JamesPa , 2 hours ago
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I think it is very much me that is sitting outside the ...
By Grantmethestrength , 3 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
I've reduced my debit to £10/month For end July it sh...
By Tim441 , 6 hours ago
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RE: Replacing Refrigerant on Mitsubishi Heat Pump
@davidalgarve It should just be recovered by both servi...
By dgclimatecontrol , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
Aggregators have been recognised for many years, and it...
By Transparent , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
Great news I edited my previous post (probably af...
By JamesPa , 1 day ago
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RE: Double or Triple Glazed Windows?
@toodles Glad to hear things are progressing well for y...
By TRBob , 1 day ago
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RE: 300 Liter Tank - Do I have to heat it all?
I agree with @morgan. You can turn down the target t...
By JamesPa , 1 day 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 , 2 days ago
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RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
@topher you’re more than welcome to, yes. I’ll send you...
By Mars , 3 days ago
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RE: Fitting new shower valve ..........
I’ve never taken a chance when fiddling and changing ou...
By Mars , 3 days ago
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You should contact the council and report the unsatisfa...
By JamesPa , 3 days 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 , 3 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 , 3 days ago
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RE: Compressor and Evaporator Stratification
@trebor12345 So I think the 1st zigzag section shows so...
By ASHP-BOBBA , 4 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 , 4 days ago
