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Last seen: Jan 14, 2025
so a small loss per hour on an unused HW tank is inevitable, no tank insulation is perfect of course, but 0.5C is a bit high, I'm nearer 0.2C. Have a ...
@riponowl couple of questions about the data from the passivliving screenshots, to me they seem puzzling in a several places. they show your flow ...
sorry mike, I disagree if the system is split primary/secondary, with a buffer or LLH, then you have to have two pumps, it can't work without, thats...
just did a quick google: is passiving something that does online monitoring of your system via data from the heat meter? I'd be interested to see any ...
@riponowl heacol (an installer on this board) used to recommend Bellimo or ESBE when I asked him exactly this question. I went with ESBE. I think his ...
@riponowl COP of 3.5 is ok as a long term, worth keeping an eye on what it does day to day if your system has that capability (Sorry I don't know wha...
yes you have to do this. there are plenty of online tables to show how the output of the same radiator drops given different DT. most mfr's don't qu...
the flow rate dropping when you upped the ABV pressure indicates that the ABV was letting flow through, proving an alternate route. I don't know of a ...
not quite sure why you are asking this on this board as clearly a retrograde step, but anyway in the spirit of helpfulness: if your house is already p...
so there is hot water in the system being generated by the ASHP and its going somewhere, but not to your radiators.. this is a normal plumbing and hea...
@riponowl just set it to 0.6, the highest value. you don't need to "tune" it, you are not trying to balance a TRV boiler system which is what they wer...
its really hard to prove this one, because with an ASHP the difference between Flow and Return T is not a lot, not always easy to feel, and the behavi...
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Degrees of Separation
Latest Posts
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First you need to know how much thermal energy you'll n...
By bobflux , 9 hours ago
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RE: How quickly would you want/expect heat recovery to take from setback?
@toodles Ah, that makes sense. Your using the TRV bo...
By Singlespeed , 9 hours ago
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RE: Renewables & Heat Pumps in the News
Yes, energy seems less of a priority, even if the cost ...
By Batpred , 10 hours ago
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
Come for the low-carbon homes. Stay for George Clarke’s...
By Mars , 2 days ago
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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...
By Mars , 2 days ago
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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 , 3 days ago
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RE: Heat Geek installations: share your experiences
one thing i learnt from reading people’s comments and e...
By Batpred , 3 days ago
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RE: Cooling/heating with one unit
"The way we use A2A on a cheap overnight EV tariff is t...
By mrkfm , 4 days ago
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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...
By Toodles , 4 days ago
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
...or it was there and was lost thanks to laziness and ...
By Majordennisbloodnok , 4 days ago
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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...
By Tony.Stolz , 4 days ago
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The installer visited yesterday and suggested the noise...
By JamesChatz , 4 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
By JamesPa , 4 days ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
Thats true only if you do the wrong experiment. Done c...
By JamesPa , 4 days ago
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