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AllyFish
@allyfish
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Noble Member
Joined: Oct 31, 2022
Last seen: Nov 5, 2025
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Topics: 23 / Replies: 486
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RE: Grant 10kW versus Samsung 12kW - sizing dilemma with ECO4 installation

Yes, at -3degC target LWT should be 45degC, but tends to never get above 40degC, leaving a shortfall of heating duty and requiring supplementary secon...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 10kW versus Samsung 12kW - sizing dilemma with ECO4 installation

I can't comment on the calculations your installers have prepared, which I presume include for all ECO4 upgrades including internal wall insulation. T...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

Totally agree @mikefl. The way Grant runs the CH and DHW is dumb, with no intelligence between the two. It's basic S plan stuff from 40 years ago. The...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson this is great news. 😀 Those little temperature probes are very handy, accuracy is probably +/-1degC. They certainly help with understanding ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Issues with 6.5kWh Growatt battery – Shinephone app says system is offline

No further questions m'lad 😉

2 years ago
Forum
Energy Storage
Reply
RE: Issues with 6.5kWh Growatt battery – Shinephone app says system is offline

@transparent let's keep it simple. You're overthinking it mate! The OP here has Cosy Octopus and wants to run, for as much as possible, their future A...

2 years ago
Forum
Energy Storage
Reply
RE: Issues with 6.5kWh Growatt battery – Shinephone app says system is offline

The Growatt SPH5000 inverter will support 2x Growatt 6.5kW batteries. Max inverter output is 3kW at 240V AC 1 phase, which will cover most of your ste...

2 years ago
Forum
Energy Storage
Reply
RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

@toodles You were unlucky. I got the same 4 digital sensors over a year ago and all batteries are still going strong. Great devices across the low los...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Issues with 6.5kWh Growatt battery

Hi there and welcome. 🙂 Growatt app is very clunky and sometimes misbehaves. OEM service support in the UK is non-existent from Growatt, but YouTube ...

2 years ago
Forum
Energy Storage
Reply
RE: Grant Aerona3 10kw - Few questions

Hi @mikefl, Grant don't normally connect anything to terminals 7&8 to enable the parameter, and rely on the external 3rd party tank temperature th...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 10kw - Few questions

Oh that's not good. The pressure is regulated in the Grant hot water tank, and it's a mains pressure unvented type system. The brass cap on the tank c...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Have Consumers Been Lied to About the Efficiency of Heat Pumps Made in China?

Via contacts on LinkedIn. Yes, the same exposé 😉

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 17 / 43
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