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Last seen: Aug 23, 2026
@declan90 thanks very much for this since it wasn’t clear from the brochure. We want wired since our concrete block walls block signals fairly well,...
@jamespa this morning we were told that up to the window cill is ok, in Vaillant’s new advice. my other comment would apply if anyone considered tha...
@benson & @toodles from both your previous posts and our experience the heat loss in the larger rooms was correct (compared to my own analysis usi...
@jancold I suspect all they’ll look at is whether there is a handle!
We dodged the bullet since we had a non-opening window fitted where we hope the pump will go. It was by accident rather than advanced knowledge of the...
We’re in Hampshire and at the getting quotes stage too. We’ve also been in contact with Cinergi and sent back 14 questions on their first quote. W...
If you find the spec sheet of a 12kW Midea it’s only about 10kW at -2C (design temp for a lot of south England) whereas the 11kW Mitsubishi could actu...
The above beautifully detailed reply by Ray shows the issue of units used. Air changes per hour ACH are easy to visualise and hence a larger room volu...
If you want to get into engineering /architectural details the there are a couple of good blogs from guys, one with a solid wall cottage
Personally I wouldn’t touch BG with a barge pole, based on 2 family experiences with them when they went into solar. On your own heat loss estimate ...
Or is refusal to burn wood when the market price is above the strike price (and the system needs power presumably) simply gaming the system to maximis...
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Degrees of Separation
Latest Posts
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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 , 15 minutes ago
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RE: Who's your electricity provider and what's your tariff?
Looks like not much change in electricity prices in the...
By ChandyKris , 2 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 , 2 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 , 2 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 , 3 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 , 20 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 20 hours 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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