Last seen: Dec 18, 2025
Pretty much, noise is caused by high fluid velocity and turbulence created by restrictions, which is caused by things like nearly closed balance valve...
Hi @grantmethestrength, looks like your pump setting is on speed 3 in your Grant ASHP, grab the installation manual, read up on circulator pump dip sw...
Yup, I had this on Agile dynamically priced tariff, I think my smart meter missed one or two half hourly billing periods, and rather than look at the ...
There's a lot of discussion about them on the Facebook Octopus Agile group. Quite a few people are jumping ship to Tomato from Agile, due to the recen...
1600kWh total import in January, all-electric house, around 1200kWh of which will be ASHP heating and hot water. January was about 25% of our annual i...
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 ...
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RE: Post-Traumatic Heat Pump Stress Disorder
@johnbroome As I say I think you probably have a fau...
By JamesPa , 7 minutes ago
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RE: Heat pump not reaching flow temperature
Interesting. Judging by my house which is different is...
By JamesPa , 25 minutes ago
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RE: Recommended home battery inverters + regulatory matters - help requested
So far as i can see no because its NOT connected to the...
By JamesPa , 1 hour ago
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RE: Please help with the settings ecodan
Hi and welcome to the forums.Does your system use a Mit...
By Sheriff Fatman , 2 hours ago
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RE: New Daikin 11kW Altherma 3M install - is it working as it should?
I forgot to mention: Octopus measured our heat loss at ...
By Toodles , 3 hours ago
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RE: Considering MLCP (Multi-Layer Composite Pipe) for ASHP
Thanks Mars and thank you for reaching out to so many p...
By iotum , 3 hours ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: @davec Manufacturer: Peak Energy Mode...
By DaveC , 3 hours ago
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RE: Rate the quality of your heat pump design and installation
@radwhispererdwhisperereorourkeditor Well, the guy came...
By razz , 3 hours ago
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RE: Setback savings - fact or fiction?
Given the weather has been relatively stable, the empir...
By Batpred , 4 hours ago
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RE: GSHP WOES! Midland based engineer recommendations?
@editor That is very kind! Thank you so much.
By johnbroome , 5 hours ago
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RE: ASHP Energy Consumption: Aira 12kW heat pump
@wally Hi I am not sure how large your house is b...
By TechnoGeek , 6 hours ago
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RE: Predicted Heat Loss & Needs from MCS calcs vs EPC vs actual
I've been thinking along similar lines to @tim441 from ...
By Sheriff Fatman , 6 hours ago
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Thanks, @technogeek. Good to hear about the accuracy. ...
By Majordennisbloodnok , 7 hours ago
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RE: Advice for a novice on Mitsubishi Ecodan 6kW
In my case it was a very specific pattern of behaviour ...
By Sheriff Fatman , 7 hours ago
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RE: Vaillant aroTherm not heating with many faults
@ashp-bobba Yeah I'll give it a go, will check filter...
By Anon67 , 7 hours ago
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RE: RDSAP10 effect on existing heat pump EPC rating?
@transparent Perhaps the names at the end of the docume...
By Toodles , 7 hours ago
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RE: Heatpunk Floor plan issues
@jamiejones85 A2A they will design on dynamic heat loss...
By ASHP-BOBBA , 8 hours ago
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RE: Fan unit Making terrible noise HELP!!
can you post a video looking inside, at and through the...
By ASHP-BOBBA , 9 hours ago
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RE: Power outages and storms: A surprisingly good DNO experience
Agreed, which is no more nor less than a customer shoul...
By Majordennisbloodnok , 1 day ago

