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AllyFish
@allyfish
Contributor
Noble Member
Joined: Oct 31, 2022
Last seen: Jun 18, 2025
Topics: 22 / Replies: 468
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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...

3 weeks ago
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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...

4 weeks ago
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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...

4 weeks ago
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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...

2 months ago
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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...

2 months ago
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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...

2 months ago
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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...

2 months ago
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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...

3 months ago
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RE: Database of heat pump performance data?

I would be very wary of manufacturer's published SCOP data. One very common brand retailed in the UK using Japanese badged up R32 ASHPs has SCOPs that...

3 months ago
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RE: Are MCS are finally improving (some of) their guidelines?

The update of MCS 031 has been heavily criticised by many of the better and higher SCOP achieving installers over on LinkedIn, etc. MCS 031 update is ...

3 months ago
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RE: Octopus Cosy 6 launched

Oh dear, someone majorly goofed at Octopus. They've credited me back about a year's worth of bills today. Bumping my account credit from £375 to £1568...

3 months ago
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RE: Grant Aerona fine tuning advice needed

Hi @stopbar, it's s difficult balance. Trial and error in large part. Every home is different. Pure weather compensation control is good, but not pe...

4 months ago
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