
Last seen: Aug 24, 2025
Quite apart from the rules which apply to MCS-registered companies, it is a requirement of the Building Regulations that the installer must commission...
Your Domestic Hot Water (DHW) cylinder is supplied via a 3-port valve. It will have at least one temperature sensor which connects back to the heat-...
Boiler? Is this perchance a hot water cylinder, but outside the house due to lack of space inside? In general, thermostats shouldn't be fit...
Hi @econonsense Your plea for help is heard! What you're stating here is very similar to the observations I read from a batch of 250 householders w...
Two recent discussions on this forum looked at the figures and different approaches: See A Business Case for a Battery and Battery Sizing - How low ...
@downfield May I point you in the direction of this topic about the anti-legionella system used by heat-pumps to prevent the growth of bacteria in th...
If you're looking for a more environmentally sustainable way of keeping external batteries warm in winter... ... may I point out that honey bees hav...
Read this Topic which discusses anti-freeze valves and glycol. Either strategy has deficiencies which need consideration before you start waving cas...
Yes @morgan that's a fair point. Foil insulation is already known to reduce the signal strength of Smart Meter communications and TV reception from...
Stand by... technical explanation coming 😉 I'm going to assume that the battery chemistry is LiFePO4 (lithium ferrous phosphate).These are ...
What will have changed over the years will be the power output of those PV panels. 5 years ago a 'standard' 1.0 x 1.6m panel would be producing arou...
@burtis we don't know how many PV panels can be fitted on your roof.You might be able to estimate it if you know the size of your tile/slates. The ...
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RE: Mitsu Wireless Controller and MelCloud
Update: I have found that the contractor had changed on...
By DavidAlgarve , 7 hours 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 , 7 hours 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 , 10 hours 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 , 12 hours ago
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RE: Rodents! A word of warning for heat pump owners
ChatGPT comments: Yes – u...
By Tim441 , 14 hours ago
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RE: Why so many sigenergi installer recommendations?
It’s a really simple answer, GivEnergy. Installers ...
By SAEnergy , 15 hours ago
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@editor Something changed in this last 12 months, they ...
By ASHP-BOBBA , 1 day ago
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RE: Ecodan & MelCloud scheduling
I put the above question to Mitsu UK at the sme time as...
By DavidAlgarve , 2 days ago
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Thanks for the heat geek info. I've fitted my own heat ...
By bontwoody , 3 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 , 3 days 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 , 4 days ago
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RE: Mitsubishi PAR-WT60R-E Wireless Controller installation
@morgan They have been paired once but it was thought b...
By DavidAlgarve , 4 days ago
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RE: Isolating the system for a planned power cut
A great many ground-mounted local substation transforme...
By Transparent , 4 days ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Having bit the bullet and paid £250 for a service, our ...
By Old_Scientist , 5 days ago
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New heat pump heating system underperforming in Italy... Advice needed!
hi all, first post! I've just renovated a house in sout...
By robinlawrie , 6 days ago
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RE: Anyone still weathering it out with Agile?
I went to Agile when I had solar installed July last ye...
By NJT , 6 days ago
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RE: Say hello and introduce yourself
Whilst you're busy installing services (pipes and wires...
By Transparent , 1 week ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@editor I know it was formally announced at Ish the oth...
By PatrickVito , 1 week ago
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@moman0311 welcome to the forums. I've received your em...
By Mars , 1 week ago
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RE: Thermostat for Ideal Logic Air with 3 zone support
No harm at all in plumbing it as 3 zones, I would have ...
By JamesPa , 1 week ago