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Last seen: Nov 3, 2025
@peterr your house size is about the same as mine. Given you've got UFH you should be using less power. Have you done a heat loss assessment? How well...
@peterr your energy figure, is that heat delivered or heat used? I ask because those are two very very different things. It makes more sense for that ...
@derek-m should probably make that graph based on heat provided and not power used. That would deal with problem
@kev-m fairly straight line relationship for it. If you plot a trend line you should be able to estimate your usage based on temperature moving forwar...
@morgan box them in and lag them
@kev-m how does that look if you plot temperature on the X axis? Is the power use fairly linear?
@editor its distribution costs as far as I understand it. If you live next to a hyrdo plant the losses to get you the lower are very low. To move lots...
@editor say what you like about batteries, but the ROI can be very good. Mine is 18.5% this year so far. I wouldn't be surprised if they save me maybe...
@yachtsman if you don't care about the ROI, then you cant really judge the value. The Tesla battery alone is the hands down the most expensive element...
@yachtsman I top up my battery fully using that 4hrs, but it's mostly gone by the end of the morning due to the ASHP grinding it up. But that time 12-...
So far so good in terms of heating - house is plenty warm. Annoyingly my app isn't working so I cant see power used vs heat delivered. I'll be calling...
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Degrees of Separation
Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Hi, sorry that I have been absent for a while. I'd like...
By baroquebank , 9 minutes ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 4 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 1 day ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 1 day ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 1 day ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 1 day ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 2 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 3 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 3 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 4 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 4 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 5 days ago
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