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Last seen: Sep 13, 2025
hmmmm - sadly the Mitsi's are more expensive (£2,700 the pair) and wider (by 300mm the pair). The Mitsi R32s are a little cheaper, do they have the sa...
So this is from Grant - can't fault them for speed of response to an email about 2 x 10kW: When using two R32 Aerona³ heat pumps connected in a casc...
ah that's interesting @jamespa - so could one 10kW (say) supply the HW and the UFH at 35 degs and the other supply the CH at (say) 45 degs? Then presu...
thanks guys - I hear you on the not rushing and plainly we need to sort this heat loss, which is crucial (obvs) but also a bit like nailing jelly to t...
thanks @toodles and @jamespa (again) - I shall have that convo when I find an installer (the chap I was going to use isn't experienced enough and has ...
Hi @jamespa, thanks again for all your thoughts, very useful. Yes I'm afraid time is now of the essence (and yes you're correct we have new ASHP-ready...
Hi @jamespa and a nod to @grahamf for his excellent old/large house explanations. I am still going around in a vortex of different suggestions without...
awesome @jamespa - great advice - keep it simple. And yes the cylinder IS unvented and I agree, can't bear to just chuck away. The PHE call is geniu...
Thanks @iaack and @jamespa for your further thoughts. Your advice has been invaluable. I have a well respected installer ready to install the 12kW V...
@jamespa thanks. For a fossil fuel comparison we spent approx £2,500 (av. 71p per litre) - £2,800 (av. 85p per litre) per year on oil (2023 and 2022 f...
Wow @jamespa thanks so much for this - I am lucky enough (in our very hot summers!) to live in Somerset in an 1840s vicarage made of blue lias stone (...
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Latest Posts
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@batpred Many manufacturers sell only one or two mod...
By bobflux , 55 minutes ago
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RE: How many people are happy with their ASHP and do you believe them?
For some actual data I recommend reading the NESTA surv...
By JamesPa , 1 hour ago
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@editor thank you - our tank is of course huge - we hav...
By AliRam , 5 hours ago
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@editor this is great news.
By ASHP-BOBBA , 6 hours ago
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RE: Daikin Altherma 3 with Fan Coils in Puglia (Italy)… Sanity Check on System Operation
AH (Absolute humidity) is grams of moisture per volume ...
By bobflux , 6 hours ago
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RE: Loud noises in the night - and one for the toolbox?
I appreciate your help and when I find the cause I'll p...
By Jancold , 17 hours ago
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RE: Grant Aerona R290 (15.5kW) - How is DHW Target Temp calculated?
Just in case someone else has the misfortune to come ac...
By TaffontheTaff , 18 hours ago
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RE: UK warm homes plan - how can it be delivered?
That looks like the direction the policy makers are hea...
By Temperature_Gradient , 19 hours ago
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RE: Estimating true heat loss from twelve months of consumption data
Thanks - something to certainly consider !
By ian33a , 19 hours ago
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RE: Forum updates, announcements & issues
Yes, I got it at 10:24. But Wednesday is my "day off"...
By Transparent , 20 hours ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
Personal choice but without a doubt my heating pump cop...
By JamesPa , 1 day ago
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RE: MCS 2.0 - Changes in January 2025
I had a few quotes and none of them says much about the...
By Batpred , 1 day ago
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RE: ASHP Capacity loss with aging
I see where you were also going with this, its is likel...
By ASHP-BOBBA , 1 day ago
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RE: Renewables & Heat Pumps in the News
Interesting prompt about whether some of the solutions ...
By Jeff , 1 day ago
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RE: Lower electric tariffs for heat pump users
I did some modelling using our real consumption figures...
By ChandyKris , 2 days ago


