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AllyFish
@allyfish
Contributor
Noble Member
3463 kWhs
Joined: Oct 31, 2022
Last seen: Sep 9, 2024
Profile Activity
Topics: 19 / Replies: 388
AllTopicsReplies
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 ...

8 hours ago
Forum
Safety, Regulations, Tools & 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...

4 days 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 ...

5 days 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...

7 days 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...

3 weeks 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 ...

3 weeks 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...

3 weeks 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...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How I Negotiated a Better Deal on My Heat Pump Installation with Octopus Energy

@NJT, same here with my experience. 50degC design, which at the time I didn't query. But the same set up is now set to 45degC max, and most of the tim...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How I Negotiated a Better Deal on My Heat Pump Installation with Octopus Energy

When comparing quotes, it's very important to try to ensure technical parity. Very crudely, the higher the system design temperature, the lower to cap...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Standard Set to Revolutionise Heat Pump Installations in the UK

There's standards and then there's standards, in order of precedence: Legislative, European/international/British, trade/industry codes of practice,...

1 month ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Domestic hot water timer doing crazy things on my Grant Aerona3 10kW air source heat pump

Hi @mellow, pics of our Grant thermostat below. Rotary control but digital setting. Standard on their pre-plumb cylinders I believe. First one we had ...

2 months ago
Forum
Domestic Hot Water & Cylinders
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