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Last seen: Dec 23, 2025
Thanks for the tips. The engineer booked to do my (next) heatloss is heatgeek elite and has various systems on open monitor with an average scop >...
I've assumed a boiler efficiency of 85% and heat pump scop of 380% to get to an overall 4.2 multiplier. Too harsh on the boiler maybe given flow temps...
Asterisk explanation:* I am skeptical of whether the pre-manifold mixer really is getting UFH flow temp to 30c. It feels warm once the screed is heate...
Thanks for the response Major. I have an old 'proper' heatloss done based off building plans that we have not yet executed. As you suggest, it has exp...
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Latest Posts
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RE: Who's your electricity provider and what's your tariff?
@old_scientist Have you ran the numbers as to which ...
By Papahuhu , 50 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 , 3 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 , 4 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 , 5 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 , 6 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 , 22 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 22 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



