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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
AllTopicsReplies
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RE: Anyone still weathering it out with Agile?

I played 'stick' rather than 'twist' this summer. I would normally have flipped from Cosy to Agile, but to be honest I decided I 'CBA' to check the Ag...

18 hours ago
Forum
Electricity, Tariffs, Monitoring & Providers
Topic
Octopus Cosy & Octopus EV + bidirectional smart tariff, together. What, eh?
2 weeks ago
Forum
Electricity, Tariffs, Monitoring & Providers
Replies: 5
Views: 46
Reply
RE: Why do we need pressurised systems?

A good question @toodles. My old open thermal store and oil boiler chugged away quite happily, if expensively, unpressurised. But the header tank was ...

2 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: 300 Liter Tank - Do I have to heat it all?

Hi @martingale, welcome! You can't really have too big a DHW cylinder, but you can have one too small. If it's well insulated modern unvented cylinder...

2 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Flow Rate & Low Loss Headers

Hi @morganr, welcome. Interesting post. I looked at the Adlar literature. One thing jumps right out, this diagram, which is plain wrong. I need to c...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: All your heat pump problems solved by -- a plate heat exchanger in a plinth!

@iaack of course, you're right, but that's not the market the OEM of 'Heat Saviour' is targeting, They are targeting retrofit ASHP heat pump market, s...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: All your heat pump problems solved by -- a plate heat exchanger in a plinth!

EH? so this is a water to water primary to secondary plate heat exchanger, [PHE] buried in a unit to sit under the DHW tank. So it compels every insta...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Charging the last 5%

@chandykris our experience is that the BESS added to the solar retrospectively is a financial game changer. During the heating season we schedule ch...

3 months ago
Forum
Energy Storage
Reply
RE: Charging the last 5%

Hi @chandykris, we have two 6.5kW Growatt batteries, they do take a long time to charge the last 5% or so. It's a reduction in charging power as the b...

3 months ago
Forum
Energy Storage
Reply
RE: Renewables & Heat Pumps in the News

No surprise the Telegraph has jumped to their predictable hasty conclusion. The subject of grid supply and demand balancing and grid resilience is a c...

4 months ago
Forum
Well & Truly Off The Grid
Reply
RE: The Great British Heat Pump Quiz

That was fun, thank you @editor. 85%, which is just as well after 35years in the HVAC industry. Some careless answers on my part, and maybe a couple o...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Database of heat pump performance data?

@jamespa yhey probably are, as EN 14511 prevails in the UK and EU. That said, it was the COP data at identical A&W temperature combinations that w...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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