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Last seen: Aug 26, 2026
@ashp-bobba, do I remember correctly that you install A2As?
Great topic to raise, @djh… air-to-air systems are definitely under-discussed relative to their air-to-water cousins, so hopefully this thread can bec...
Unless you hire the cowboys our neighbours used, who installed the entire array off ladders, clinging on for dear life at the ridge of the roof for a ...
That's it, we’ve now rolled out a new backend on our forums that introduces a more intelligent way of navigating the platform. Over the coming weeks, ...
Welcome to the forums. Irrespective of which brand you have, the circulation pump running constantly when heating is off is not normal. It shouldn’t...
A quick heads-up. We’ll be carrying out a major forum update next Tuesday, during which the site and forums will be offline for a few hours while th...
@judith, glad you found the story interesting. On efficiency, I think that the very earliest solar devices, including Cove’s arrays, were extremely ...
RECC are abysmal. I was hoping it’d be HIES.
@ian-w, thank you for the detailed update and for not letting this drop after two long years. Reading through the contradictory rejections again, the ...
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Degrees of Separation
Latest Posts
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RE: Who's your electricity provider and what's your tariff?
I've not given it much/any thought. I did look at the p...
By Old_Scientist , 7 minutes 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 , 5 hours 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 , 7 hours 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 , 7 hours ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 8 hours 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 , 1 day ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 1 day 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 , 2 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 , 2 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 , 3 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 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 , 4 days ago
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