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Last seen: Sep 22, 2026
I repeat that they do not show a 20% reduction Here again are the graphs, separately and now overlaid. The crossover where setback gives an advant...
Well at least that allows me to invoke conservation of energy and some basic tests for statistical significance!
Well at least that permits me to invoke conservation of energy and some statistical significance tests
@sunandair If you care to send me that data I will do some sums. I would be delighted to find a 20% saving through a modest setback (by which I mean ...
I find this quite offensive. All the analysis I have done has been published and none of it is particularly complicated. The most recent is a very s...
You may wish to read my post here(just a couple up). I don't agree with 20%!
That's not the case once you take into account the intercept. Below are the graphs. There is a saving above about 14,000 degree minutes per day (ave...
The quote related to the circumstance when setback and recovery both occur within 24hrs. A longer setback such as 7 days for holiday is a totally dif...
@cathoderay, @derek-m I've been thinking about the possible origin of the high intercept when setback is operational, much larger than when setback is...
I think many may find quite a few terms used on the forum from time to time confusing. As i say I'm happy to consider another succinct term to desc...
Guilty as charged. Its a term used a lot in electrical engineering, less so in mechanical or software engineering. I am using it to describe succin...
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Latest Posts
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RE: Cooling using an air to water heat pump
I agree, which is why I am currently resisting buying a...
By JamesPa , 13 minutes ago
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@mrkfm In fairness @editor has had a particularly ba...
By JamesPa , 28 minutes ago
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RE: Passiv Smart Thermostat - Help & Forum Support
Is there any expected time frame for an update to be ab...
By Singlespeed , 4 hours ago
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RE: Why are ASHP installs so expensive?
Posted by: @springswood I confess to becoming a litt...
By Rob of York , 5 hours ago
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Analysis of the economics of switching to an A2W ASHP compared to other heat sources
This post aims to analyse the economics of installing, ...
By Rob of York , 9 hours ago
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RE: Cooling with air to water heat pumps
@editor does that mean you have to have two separate ex...
By mrkfm , 24 hours ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
Posted by: @ian-s Could always use the money saved o...
By Rob of York , 1 day ago
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Depends on what controls the pump! Thats the whole poi...
By JamesPa , 1 day ago
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The positive reviews keep coming in for Britain's Heat ...
By Mars , 2 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
I have one of these fitted which also allows you to reg...
By Old_Scientist , 2 days ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
By JamesPa , 3 days ago
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 3 days ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 3 days ago
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 3 days ago


