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AllyFish
@allyfish
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Noble Member
Joined: Oct 31, 2022
Last seen: Aug 19, 2025
Profile Activity
Topics: 23 / Replies: 471
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RE: Octopus Cosy 6 installation (fan boy video)

Looks like a gents urinal at a music festival. Only a matter of time until someone pi$$es into it.

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How loud are the sound levels of internal components like water heater, buffer tank, etc. in an air source heat pump set up?

If the hydronic piping to radiators or UFH is correctly sized, there should be little noise. Noise tends to be caused by one or more of these factors:...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ducting an air source heat pump for the purpose of potentially fitting it the cellar

The problem with ducting or enclosing a ASHP is adding external static pressure (ESP) to the fan. The fan impeller is designed to move large volumes o...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Are you planning to use a wood burner to supplement your central heating this winter?

Our log burner will be used for supplementary heating when the weather turns and the dark nights draw in. We don't really need to light it, but it's a...

11 months ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
Reply
RE: How Poor Water Quality Can Destroy Your Circulation Pump

Hi @Graham Brennand, Grant's installers don't seem very consistent on glycol. Grant recommend it, but a lot of their systems, mine include, use water ...

11 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Grant Aerona 13KW - can I boost it?

Well ideally @johnmo, but I have a coupe of things that work against that; I have a 22 rad system over 3 floors, 28mm CU primary, 22 and 15mm Cu secon...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona 13KW - can I boost it?

@marvinator80 that's interesting. I know from your previous install pictures you would be struggling to make space for an internal volumiser. The 3kW ...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: DIY Heat Pumps.

I'd be a little cautious about this generalisation Martin. Most F-Gas refrigerant engineers have specialist training and competency that comes at a pr...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

@dodgyknee hi, here's Group 46 parameters changed from default for me, default in [ ] 46 00 = 3 [0] heater enabled in supplementary mode 46 01 = 4...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

@dodgyknee this sounds familiar Yup, I played around, got the supplementary heating indicator to appear on the Grant controller, so all appeared to ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

The Grant LLH works well for me with the 3kW immersion programmed to give supplementary heating during defrost mode when the LWT drops below a pre-set...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump install overloads home fuse.

I had a similar pantomime with my DNO. My incoming fuse is 80A with 25mm2 meter tail L&N incomers from external fuse and meter box to internal con...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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