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Last seen: Oct 20, 2026
The deviations can be handled by a) the lockshield valve. this restricts the flow rate through the rad in question which increases the deltaT for ...
Noted but (a) constant vs variable flow rate doesn't materially affect cycling, that is determined by the how far the heat pump can modulate down its ...
I haven't yet bothered optimising the heat pump cycle, I just leave it on 24*7. I did my calculations to get to 19.3p per kWh from mid Nov - mid Feb....
Thanks I presume 3.86kW applies to export (is this correct?). I already have 3.86kW export capacity for the solar, Im guessing they are unlikely ...
Im interested in that comment. I would like, and can afford, to get a battery. But I cant, however hard I try, make the business case pay (and I d...
I watched it. I found it an interesting discussion but Im not sure how much sense it would make to someone coming at this from a 'standing start'. T...
@cathoderay Whilst trying to do an energy analysis I looked a bit more closely at the two plots you posted of similar days. The cycling, once you ar...
Very sensible. Get the 'second round' quotes in, hopefully puts you in a position to make a decision.
No pressure or obligation, this discussion has moved on so much I felt it worth restating in case you had missed it. Installers will probably sa...
Don't lose sight of the fact that at some point to optimise your settings, I recommend to turn this to max and 24*7 operation then adjust your water l...
Is that because the only people who will quote for 45C also quoted for Vaillant? Might be worth doing a stare and compare (between the quotes) on ...
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Degrees of Separation
Latest Posts
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My heating has been off and DHW on throughout the summe...
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RE: Anyone concerned about GivEnergy?
The GivE forum seemed to have survived the collapse of ...
By downfield , 2 hours ago
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RE: How quickly would you want/expect heat recovery to take from setback?
@singlespeed I had better explain how my radiators are ...
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RE: Cooling/heating with one unit
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RE: 15kw pump for 225m2 1990's house - over kill?
Firstly you have come to the right place and its good t...
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RE: Renewables & Heat Pumps in the News
The irony is there's already an established internation...
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First you need to know how much thermal energy you'll n...
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
Come for the low-carbon homes. Stay for George Clarke’s...
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@razz, as we head into the heating season, I just wante...
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RE: How should the Boiler Upgrade Scheme be reformed?
Not quite, regular A2W heat-pumps need a load of extra ...
By Temperature_Gradient , 4 days ago
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RE: Heat Geek installations: share your experiences
one thing i learnt from reading people’s comments and e...
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
We have ‘signed on the dotted line’ today for a Panason...
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
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Bufferless design & control of Chinese air to water monoblock hybrid heat pump in Alberta, Canada
This post is about how I successfully configured a buff...
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