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Last seen: Aug 17, 2026
@squeakysim, the document youβre after is Microgeneration Installation Standard: MIS 3005 and you can download it here and go to page 14:
@transparent, the quick answer is if you want your government grant as part of the Boiler Upgrade Scheme (BUS) the installers must be MCS accredited. ...
@squeakysim, as part of MCS guidelines, systems must be designed to satisfy the following internal temperatures: Living room 21C, dining room 21C, b...
@allyfish, did the same company do the ASHP and PV?
@batalto, have you made any progress in getting your system fitted?
Due to the intro forum getting sidetracked, the PV discussion that was ensuing has been moved here:/p>
Some interesting things to note as temperatures have dropped. Despite outside temperatures dropping to 9-10C, the heat pump's weather compensation con...
For those members that haven't updated their profiles yet, we would like to encourage you to do so because it makes it easier for people to get a bit ...
@mjr, fair enough. I've bumped it up a spot. We can't move it to the left, because the forum page only has a right sidebar.
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Latest Posts
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
Absolutely spot on IMHO. Anytime someone posts here ...
By JamesPa , 2 hours ago
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I'm not sure why you would want to make it more difficu...
By JamesPa , 3 hours ago
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Hmm, not so sure personally about the title. Who is it...
By JamesPa , 4 hours ago
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RE: Mitsubishi Ecodan FTC6 settings
I was just replying when i saw your edit drop in! π ...
By F1p , 5 hours ago
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RE: Wood burner with ASHP - direct air?
@lucia FWIW installed a woodburner some years ago. ...
By JamesPa , 7 hours ago
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RE: Who's your electricity provider and what's your tariff?
@toodles I invested on Miele a pair of frodge frozor wh...
By AgentGeorge , 22 hours ago
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RE: Flushing system, cleaning and inhibitor
Flush and fill all complete. Octopus kindly gave us a...
By Old_Scientist , 22 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
I think I saw a diagram for an exhaust air dhw tank wit...
By JamesPa , 2 days ago
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RE: Indevolt Batteries UK Support & Info Thread
Thanks, however that's an answer to a subtly different ...
By JamesPa , 4 days ago
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RE: Solar Power Output β Letβs Compare Generation Figures
@toodles Such elegant symmetry. look at my lumpy bag of...
By Papahuhu , 5 days ago
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RE: PV and battery long payback - sense check query
Quite probably not, but you can get a 32A relay and a S...
By JamesPa , 5 days ago
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I don't notice mine defrosting, and most of the time Im...
By JamesPa , 6 days ago


