Last seen: Feb 9, 2025
Weekend upgrade, Primary Pro done properly, unlike my installer’s attempt. Less heating the street hopefully 😉
@jamespa it's seldom adequately understood even by us [so-called] engineering professionals. There was an excellent series of articles published in th...
I think there's a sector of the energy efficiency retrofit industry that is well meaning, but simply incompetent. There are two passive retrofit measu...
Hi there, and welcome @wyf. Glycol might not be compatible with all compression fittings that use rubber or neoprene sealing systems. Needs checking. ...
I would insulate them, and any other valves bodies and buffer thank bulkhead fittings, etc. not currently insulated. You can't really over-insulate pi...
Hello @davidm06, Grant 10kW owner here. We experience the same, the Grant Aerona R32 is a defrost-happy unit, one which will defrost every 40-50 minut...
@jamespa it's a good find, thank you. Some inaccuracies however, including the assumption that split air source heat pumps have the compressor inside ...
Our 10kW Grant Aerona also gets noticeably louder when cold. There's a few reasons why: 1. The ASHP is working very hard, the compressor frequency i...
Hi @steam-powered, @mikefl makes good points above, especially balancing the low loss header if you have one. If you don't have any flow setting or mo...
Our 2024 year end summary: 1992 EPC C house (76%) 155m2. 10kW ASHP primary CH & DHW, 5kW wood stove secondary heating for colder winter evening us...
Rubbish in = rubbish out.EPCs are not reliable with too many assumptions at the discretion of the energy assessor. I downloaded the MCS 031 system p...
A big 'hmmm' from me. 😉 The elephant in the sitting room is not the efficiency and rated performance of heat pumps when tested to BS EN 14511 or BS...
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Latest Posts
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RE: Vaillant Arotherm ASHP gets noisier when it gets colder outside
I didn’t hear any problem with that noise it was less t...
By Judith , 4 hours ago
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RE: New Project! ASHP, Solar PV + Battery, MVHR!
@editor yes please Mars, that would be fantastic.
By nickmorgan , 5 hours ago
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Struggling to Find a Top Heat Pump Installer? We Can Connect You With the Best Installers in the UK
We know from homeowner’s posts and emails how stressful...
By Mars , 6 hours ago
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RE: Baxi Air Source Heat Pump tips and tricks please
@cathoderay Our 01.00 to 06.00 electricity tariff is go...
By Cathyem1 , 6 hours ago
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RE: Recommendation for Consultants in West Yorkshire for 1850's House Installation
Welcome to the forums. I’ll connect you some recommende...
By Mars , 6 hours ago
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RE: Large ASHP recommendations for listed house
I’ll connect you via email (using the email address you...
By Mars , 7 hours ago
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RE: Vaillant & OVO partner up to offer Heat Pump Plus
An update - got through to a helpful Octopus employee, ...
By samiebon1 , 8 hours ago
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There should be no significant change in the load on th...
By JohnR , 9 hours ago
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RE: Ideal Logic 10kW Heat Pump Pipes Noisy and Very Expensive to Run
@ajbevster If it's fully pushed in yes, better if it...
By JamesPa , 9 hours ago
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps
@heatgeek Thank you, yes this is quite a meal and I'...
By Uk_pete_2000 , 10 hours ago
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RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide
Its the actual flow rate, after you have bypassed the b...
By JamesPa , 13 hours ago
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RE: The good, the bad and the not that great – my heat pump installation
@lokisam Thank you for reply. I have posted here bef...
By Dwynwen , 15 hours ago
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RE: Is My Midea Heat Pump Inherently Defective?
Absolutely, I am very aware of that! Moving to a fan co...
By cathodeRay , 17 hours ago
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RE: Noise problems with newly installed Samsung 8kW ASHP
@odynsfee Hi, I only just saw your post. Sorry to hear ...
By Lokisam , 1 day ago
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RE: Best way to heat and store hot water with ASHP and Solar - am I being stupid?
@nickmorgan you’re absolutely spot on with your thinkin...
By Mars , 1 day ago
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RE: Grant Aerona3 with Octopus Cosy tariff
Unless I completely misunderstood you (in which case ap...
By JamesPa , 1 day ago
Latest Topics
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By bretix 12 hours ago
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Large ASHP recommendations for listed house
By Greenlover75 14 hours ago
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VisitaHeatPump Participants - Guidance Please
By Toodles 1 day ago
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By KundK 2 days ago
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Pipes and cables exposed on roof
By MichelleC 2 days ago
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By Silverkop 3 days ago
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Baxi Air Source Heat Pump tips and tricks please
By Cathyem1 3 days ago