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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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Degrees of Separation
Latest Posts
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RE: Why don't people choose heat pumps?
By the same measure we should be insisting that all gas...
By Batpred , 2 hours ago
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RE: How quickly would you want/expect heat recovery to take from setback?
True but .. because the room is colder dt rad to room i...
By JamesPa , 2 hours ago
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Got two or three heat pump quotes that don’t agree? Post them here.
One of the biggest sources of confusion I see on Renewa...
By Mars , 2 hours ago
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RE: Load Shift and Lifestyle Shift Complete - our journey has ended, for now
I do not disagree with the concept of wanting to live a...
By Batpred , 3 hours ago
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RE: Buffer tank on a 2 x 14kw Ecodan system
@singlespeed I am going to put a temperature sensor on ...
By fosterl2 , 4 hours ago
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RE: Grant Aerona - Weather Compensation and Schedules
@taffonthetaff Yes, I have now gotten to the bottom of ...
By bontwoody , 5 hours ago
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RE: Grant R290 DHW Cycle Interuption
Occasionally our Grant R290 activates all three circuit...
By TaffontheTaff , 5 hours ago
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RE: Peak Energy Products V therm 16kW unit heat pump not reaching flow temperature
@davec 47kwh for 3 days is very low, compared to what I...
By johnd , 7 hours ago
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RE: Our 10 year old Grant heat pump failed
As I understand it it was working then stopped. More l...
By JamesPa , 11 hours ago
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@pipcart, Wattson is back... please go to the homepage ...
By Mars , 11 hours ago
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Do heat pump defrost cycles impair heat pump efficiency (COP values)?
The short answer is no, as far as I can see from data f...
By cathodeRay , 12 hours ago
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RE: Are We Sleepwalking Into Another Race to the Bottom?
That is a good approach and an excellent result. For co...
By Judith , 1 day ago
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