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AllyFish
@allyfish
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Noble Member
Joined: Oct 31, 2022
Last seen: Aug 20, 2025
Profile Activity
Topics: 23 / Replies: 471
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Reply
RE: Grant Aerona3 13kW Noisy pipes after balancing

Pretty much, noise is caused by high fluid velocity and turbulence created by restrictions, which is caused by things like nearly closed balance valve...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 13kW Noisy pipes after balancing

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...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Tomato Energy

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 ...

6 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Tomato Energy

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...

6 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Not a good January? My heat pump used 840 KWh of electricity

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...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Seal the Deal: Don't Let Your Heat Pump Leak Energy

Weekend upgrade, Primary Pro done properly, unlike my installer’s attempt. Less heating the street hopefully 😉

7 months ago
Forum
Insulation
Reply
RE: Widespread failure of insulation installation

@jamespa it's seldom adequately understood even by us [so-called] engineering professionals. There was an excellent series of articles published in th...

7 months ago
Forum
Insulation
Reply
RE: Widespread failure of insulation installation

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...

7 months ago
Forum
Insulation
Reply
RE: Antifreeze corrosive to copper pipe rubber rings?

Hi there, and welcome @wyf. Glycol might not be compatible with all compression fittings that use rubber or neoprene sealing systems. Needs checking. ...

7 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Insulating brass fittings in Loft

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...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 R32 HPIDI17 performance in low temperatures

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...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm ASHP gets noisier when it gets colder outside

@jamespa it's a good find, thank you. Some inaccuracies however, including the assumption that split air source heat pumps have the compressor inside ...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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