
Last seen: Aug 29, 2025
Apologies for not appreciating the difference between a GSHP coil and one being used as a heat-exchanger. Nonetheless, its efficiency is constrained...
Thanks for clarifying @alexm but I don't think that would work. Firstly I would expect any GSHP installer to provide a desk-study/survey based on th...
The installer should not have used a 5kW grid-tied inverter under these circumstances.It's not their decision - because they are required to operate w...
Yes @tommcl - there are several topics in which such strategies are discussed. Battery storage is one of my own areas of expertise.That doesn't mean...
NH fuses. Ignore price for the moment @korwraith and let's concentrate on what the fuse is intended to do. NH fuses are a German design/specificatio...
Hi @tommcl and welcome to the forum. There are others here who can address the Ecodan questions better than I. But I'm intrigued as to the 6kW of ...
That's a very helpful photo @chickenbig - thank you. Here's the dimensions of a battery in the relevant orientation with no spacers between cells in...
I'm somewhat struggling to picture these shelves with your dimensions @chickenbig Graphics would make it a lot easier to follow - either the sort of...
Sorry - I disagree.It may operate as you describe, but it doesn't comply with the regulations. User-configuration processes to restrict the output t...
Mainly for the benefit of others who will arrive here in future, may I present the following chart showing Extra-Low-Voltage (ELV: 12-60v DC) cable si...
Ah... thanks for clarifying, @chickenbig - So you're using all 32 cells within a single battery which has one BMS unit to protect it. The standard c...
I have mains-operated smoke alarms in my house. There's a 'signal' wire which carries the 'alarm-on' command to all others in the network. I've do...
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@temperature_gradient They'll all go to propane by 27. ...
By dgclimatecontrol , 55 minutes ago
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@cathoderay agreed, and I hope that the Renewable Heati...
By DREI , 1 hour ago
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RE: Midea ASHP – how to set weather compensation
Something isn't right here, you don't design ufh to wor...
By JamesPa , 3 hours ago
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RE: Electricity price predictions
the post code lottery is only one thing that is very wr...
By Judith , 4 hours ago
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RE: How Do I Know When the Hot Water Has Run Out?
@grahamf Personally I would consider bypassing one of t...
By JamesPa , 7 hours ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
No I'm not mining anything @drei but I am doing R&...
By Transparent , 7 hours ago
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RE: Rodents! A word of warning for heat pump owners
Wasps caused frequent tripping of my lighting circuit a...
By JamesPa , 8 hours ago
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RE: Ecodan & MelCloud scheduling
Yes, the 2 are separate. To add to the complex desig...
By HCas , 2 days ago
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I should clarify that the FoxESS web interface is not l...
By Old_Scientist , 2 days ago
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RE: Mitsu Wireless Controller and MelCloud
@robs Hi Rob, At the end of a note to Mitsu UK, thank...
By DavidAlgarve , 3 days ago
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RE: Why so many sigenergi installer recommendations?
@adamk Tesla is a great option, it’s also one we instal...
By SAEnergy , 3 days ago
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RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
As a potential heat pump customer, it would be good to ...
By Temperature_Gradient , 4 days ago
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RE: Octopus replacing the fixed 15p/kWh export rate with a market tracking one
@trbob I have just extracted the details for Agile Expo...
By Toodles , 4 days ago
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RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
The Ultimate Guide to Heat Pumps is less than a month a...
By Mars , 4 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor Hi Mars, We have just installed a Grant Aerona...
By GrahamF , 5 days ago
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RE: Sanity check please. Battery storage and inverter sizing.
There are MCS guidelines about how close to the edge/ri...
By Old_Scientist , 5 days ago
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RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff
I estimated our usage on the following basis. The mos...
By Old_Scientist , 5 days ago
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@editor Something changed in this last 12 months, they ...
By ASHP-BOBBA , 6 days ago
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RE: Does anyone have experience of a smart water meter?
Just to give a sense of scale, I've used the CCW water ...
By Majordennisbloodnok , 1 week ago
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RE: Powerwall 3 or Myenergi or something else?
We have a Tesla Powerwall 3, recently installed, so I m...
By Old_Scientist , 1 week ago