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Last seen: Sep 15, 2026
@rob-of-york I realise you feel the need to be cautious, but it is worth thinking carefully about what this careful two stage approach buys you. Ther...
@rob-of-york-york if you are planning to install a flow meter, I would suggest considering a heat meter instead. This measures flow and return temper...
If you are considering phasing the project, then I would investigate the VAT implications. A heat pump installation is zero rated for VAT, due to its ...
Rather than upgrading the existing pipework, could you bypass it via a different route with bigger pipes, or could you at least replace the primary pi...
@etchedpixels thanks for giving such a full and helpful reply.
Actually, I came here today to see if there was already a forum for air to air systems! We installed an air to water system without really consideri...
The hot water heating looks normal. The heat transfer into the tank is so fast that the heat pump takes a long time to reach the target flow temperat...
@petch I'm very sorry that I have not picked up your post before. I hope this feedback is still helpful.Leaving pump blockade off enables the heat pu...
@batpred I have the Aerona 290 15.5kW. It has run happily through our first winter down to -5C with no problems. I suggest you read the Grant Aer...
I have a Grant Aerona 290 15.5kW. It is running really nicely, so I think you will be pleased with yours. I’m happy to help in any way I can, includ...
@davidalgarve very frustrating, but I get the impression that you may be making some progress?
@davidalgarve compared to the UK, several things seem strange about this: Our electricity suppliers have standard outgoing tariffs, which we pick ...
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Degrees of Separation
Latest Posts
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Over the years, due to the non barrier PEX underfloor h...
By bobflux , 15 minutes ago
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RE: How should the Boiler Upgrade Scheme be reformed?
I'd argue the core problem is that currently the 'Boile...
By Temperature_Gradient , 1 hour ago
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RE: Getting closer to a finished Haier system
All the 45° elbows required for getting the primaries i...
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RE: Tesla Powerwall (2) Calibration Cycles
@papahuhu Likewise, the main ‘extra’ relates to TOU tar...
By Toodles , 7 hours ago
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
That sounds like a better approach (being able to see a...
By cathodeRay , 1 day ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
Thanks for the reference @jamespa I can't see any te...
By Transparent , 1 day ago
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RE: battery storage without solar
Indeed, current on the grid input = current used for ch...
By bobflux , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu @papahuhu A lot of tears and sweat went into ...
By Andris , 1 day ago
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RE: Solar Power Output – Let’s Compare Generation Figures
We have the same problem, 12 mature trees clip the morn...
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RE: Solis inverters S6-EH1P: pros and cons and battery options
I had a battery and inverter installed a while ago, my ...
By Batpred , 2 days ago
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RE: Is This Initial Free Quote From Octopus Trusted Partner Reasonable?
@ltron2 The EPC on our house is A-92, however that i...
By Rob of York , 2 days ago
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
The layout is confusing - much better like this: We b...
By downfield , 3 days ago
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RE: Is it just me, or does tradesperson timekeeping and communication drive you absolutely mad?
My experience, backed up by opinions from various frien...
By Majordennisbloodnok , 3 days ago
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RE: Analysis of the economics of switching to an A2W ASHP compared to other heat sources
I had a meeting today with a company based out of Swede...
By Mars , 4 days ago
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RE: Review your electricity provider
We were with Octopus in our old house and it was fault...
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