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Last seen: Feb 3, 2026
I cant offer any charts of measured figures to the defrost debate, however i can add observed conditions during a defrost. My heat pump is outside the...
@cathoderay Maybe i am a skeptic, men in white coats were involved with the Dieselgate emissions scandal, it didn't stop them, when money is involv...
@cathoderay It occurs to me that there is one variable that 99.9% of heat pump installs cannot accurately check, it is the energy output. Most of u...
@cathoderay Re defrost systems, i asked the engineer about these when the system was fitted. Viessmann have a two stage defrost, if the air tempera...
@ashp-bobba Thank you for a very detailed reply, the idea of having say 3 loops in a room instead of 2 makes sense if there is a smart controller f...
@bornagain Sounds a perfect fit, I am in a 200m2 Bungalow, unfortunately i didn't know about this site so allowed the heat loss calculations to dic...
@jamespa They will see what the plumber is suggesting when he gets back the projected heat loss, Maybe with a fancoil on the landing, the design te...
@jamespa I will see what the plans are for the hallway, it should be possible to use it to get heat upstairs. When balancing the UFH flows the hall...
@majordennisbloodnok I agree that they should look at MVHR, but will need to get their builder onside, some builders don't think air-tightness matte...
@gc61 Less that one start per hour is very good, our pump can manage that when its cold, but it cant modulate down low enough in Spring and Autumn, ev...
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Latest Posts
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
... And that's being generous! I'll tell you a littl...
By SusannaSaunders , 5 hours ago
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RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 6 hours ago
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RE: Electricity price predictions
great session Reminds me why some politicians can be ha...
By Batpred , 6 hours ago
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RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Absolutely agree. The massive Hager CU my vaillant requ...
By Batpred , 6 hours ago
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RE: Why don't people choose heat pumps?
With a heatpump tariff, it should be cheaper to operate...
By Batpred , 7 hours ago
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RE: How much of your renewable and home setup would still work if the internet went down?
absolutely agree. even if many providers see that extra...
By Batpred , 7 hours ago
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RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 10 hours ago
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I thought the cr*p came first and the biofuel came afte...
By Majordennisbloodnok , 14 hours ago
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RE: Aerotherm and weather compensation
@jamespa I replied yesterday with detailed readings whi...
By DavidB , 2 days ago
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RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
By davidnolan22 , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
Very nice. we’ve been super soggy here, but rather m...
By Papahuhu , 3 days ago
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RE: DIY powerflushing tutorial
Interesting! I toyed with the idea too. But I installed...
By bobflux , 4 days ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews Agree with the others on sequence: loft first...
By mk1234 , 4 days ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
Heating been on for 4 weeks now, continuous. It's 6C o...
By trebor12345 , 5 days ago

