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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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RE: Domestic hot water timer doing crazy things on my Grant Aerona3 10kW air source heat pump

Hi again @mellow, had a play with my DHW timer to see if I can replicate your issue. Right, there are four zones and each can have up to 4 time period...

1 year ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Domestic hot water timer doing crazy things on my Grant Aerona3 10kW air source heat pump

Hi @Mellow, I hope I can help, as I have the same Grant 10kW ASHP, Grant branded Heatmiser 4 channel DHW thermostat and a 210L Grant pre-plumbed cylin...

1 year ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Dodgy Vaillant ASHP foundation & Eddi Diverter Making Central Heating Water Dirty

@jennyross a couple of thought on this one: Vaillant ASHP monobloc support: If the installer used an existing base, such as a patio, then subsequent...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the news

InstallerSHOW 2024 opens today at the NEC in Birmingham. Here's a thread for discussions on new products, developments, news, etc. Grant launch thei...

1 year ago
Forum
Well & Truly Off The Grid
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RE: Legionnaires' Disease & Home Hot Water: Understanding Risks and Prevention

I've ditched the weekly 1hr Legionella cycle using the 3kW immersion heater fitted to a Grant 250L pre-plumbed cylinder. I was finding it ineffective ...

1 year ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Placement of Samsung R290 ASHP

Sadly a very significant downside, turned out the 'too good to be true' HFO synthetic refrigerants like R1234yf and R1234ze were, well, too good to be...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Are You Getting the Most Out of Your Renewable Energy?

Yes, I have the 'Home-me' (TM) integration system too. Similar set-up, stuff like Growatt Solar + batteries + Grant [Chofu] ASHP. All should just be s...

1 year ago
Forum
Your Home
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RE: Solar Performance

@matenateson it's good. Welcome on board! We have a modest 3.6kW 9 panel array on a house which one company dismissed as 'not suitable for solar PV' b...

1 year ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Have Octopus Energy discovered a way to Narnia?

Hello @davesoa, some things I would cross check between different heat loss calculation estimates, in order of greatest influence on heat loss estimat...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rising Damp – Production Recommendation

Hi @editor, a lot of damp is mis-diagnosed as rising. Often it is penetrating damp through the fabric, common in older solid wall properties in the co...

1 year ago
Forum
DIY
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RE: Noise problems with newly installed Samsung 8kW ASHP

That could be the case, depending on where the triple rad is in the circuit. We only have one triple on a 20 rad system, which is in a conservatory. T...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Noise problems with newly installed Samsung 8kW ASHP

Timber framing that is dry lined can be a very effective noise amplifier to anything fixed to it. A good analogy is a carelessly mounted bathroom extr...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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