
Last seen: Aug 26, 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: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
Based on owning a Vaillant and reading the manuals of o...
By JamesPa , 9 minutes ago
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The problem is bigger than rented properties, it applie...
By JamesPa , 3 hours ago
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RE: Mitsu Wireless Controller and MelCloud
@robs Hi Rob, I really appreciate your information, a...
By DavidAlgarve , 4 hours ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
What limit are you speaking of. So far I was aware dno...
By JamesPa , 6 hours 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 , 8 hours ago
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RE: Rodents! A word of warning for heat pump owners
Hradline in Telegraph: Brace for plague of rats after s...
By Tim441 , 12 hours 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 , 15 hours 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 , 22 hours 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 , 23 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 , 2 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 , 2 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 , 2 days ago
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@editor Something changed in this last 12 months, they ...
By ASHP-BOBBA , 3 days ago
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RE: Ecodan & MelCloud scheduling
I put the above question to Mitsu UK at the sme time as...
By DavidAlgarve , 3 days ago
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Thanks for the heat geek info. I've fitted my own heat ...
By bontwoody , 4 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 , 4 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 , 5 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 , 6 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 , 6 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 , 7 days ago