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Last seen: Apr 10, 2026
Yes it's a shame the manufacturers make this vital information so difficult to access!
IMO "Oversizing the heat pump" is a bit of an over simplification. What really matters is what water flow rate the heat pump likes, and its modulati...
First please check (and share) the cylinder documentation. For example while searching for "Vaillant 150l cylinder" I came up with this VIH RW 150/5 C...
Of course. Compare: When you lease a car, you don't own it. The leaser foots the capital expense (the car) and according to the contract, is respo...
Flow and return in dark blue, Outside temp in yellow, Indoors temp in light blue (living room). Indoors temp wiggles between 19-20°C. Underfloor h...
There is a trend these days of manufacturers attempting to screw over customers with mandatory cloud subscriptions. One hilarious example is BMW's a...
No idea if it works though Good practice is never buy anything "smart" or "connected" without first checking it can work with home assistant in pure...
With enough PV and fudging definitions to mean COP = heat output / grid input it's doable
EU Type 2 connector uses SAE J1772 signaling which has no means for the car to communicate its state of charge, so yeah, the only way to implement "ch...
Was looking for a way to measure flow and return temperatures on manifolds. Introducing the aliexpress stainless steel underfloor heating manifold, ...
Nice! I'm definitely subscribing to this 😉 I'm going to do something similar, but since I'm repiping everything, I will use manifolds with temper...
GSHP are quite similar to ASHP, differences being mostly the heat exchanger on the air or loop side, the fan, and software. In fact GSHP should be c...
Latest Posts
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RE: Jokes and fun posts about heat pumps and renewables
Shocking.
By Majordennisbloodnok , 2 hours ago
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RE: Anyone concerned about GivEnergy?
@jostar Given the circumstances I think most folk wo...
By KevH , 2 hours ago
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RE: What is the main ‘dictator’ of Agile’s unit price?
Interesting. I am on OG Variable and the night time ...
By JamesPa , 2 hours ago
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RE: Who do I complain to about a poor ECO4 installation, can anyone advise?
@wesleyp1874 OK so the installation was paid for by ...
By JamesPa , 3 hours ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
The vaillant controller and app do all of that (and mor...
By JamesPa , 3 hours ago
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RE: The Reality Behind a Failed Heat Pump Installation – and an IWA Insurance Rejection
RECC are abysmal. I was hoping it’d be HIES.
By Mars , 3 hours ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?
I read this thread from the beginning to its end.And th...
By LeJamaisContent , 4 hours ago
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And one should not underestimate the enhanced flavour p...
By Toodles , 7 hours ago
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RE: Water law settings... A year on
Yes it does Apart from the abbreviations! We're in ...
By Profzarkov , 8 hours ago
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Can anyone explain the following behaviour with a Grant Aerona 3 R30 / Smart Controller?
Occasionally, during a Set Back period the com...
By Unsure , 14 hours ago
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Very thought provoking Mars, and it just goes to reinfo...
By Toodles , 15 hours ago
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RE: 7.5kW Heat Loss, But Quoted a 10kW Midea. No Re-Pipe, No Buffer Tank. Does This Add Up?
Yes it's a shame the manufacturers make this vital info...
By bobflux , 19 hours ago
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RE: Plug and play solar. Thoughts?
News that the German VDE is widening the plug in solar ...
By Batpred , 1 day ago
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My Immersun power diverter problems now they have ceased trading
I have had an Immersun unit for 15 years that happily w...
By pjcwood , 1 day ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Quite often it’s the ones that have to figh...
By Papahuhu , 1 day ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
Hello @Penval unfortunately, now the winter is gone and...
By LeJamaisContent , 1 day ago
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RE: Grant Aerona R32 – Summer, Winter mode & Setbacks
What are you envisaging doing throughout the day? Pers...
By JamesPa , 1 day ago
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@batpred ok My energy delivered in kWh was a...
By JamesPa , 2 days ago
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RE: Global Energy Systems Thurso ASHP
Hello @outlawuk sorry, I forgot about this, important:i...
By LeJamaisContent , 2 days ago
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RE: Debugging my legionella immersion heater
@prunus Hmm 57 vs 65 does seem a way off, bu...
By JamesPa , 2 days ago
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RE: Indevolt Batteries UK Support & Info Thread
@batpred I assume you plugin the battery on a wall sock...
By ChandyKris , 2 days ago
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RE: Grant ASHP keeps switching on every hour
Frankly I have no idea how a room thermostat is ever go...
By JamesPa , 3 days ago
