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AllyFish
@allyfish
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Joined: Oct 31, 2022
Last seen: Sep 9, 2025
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Topics: 23 / Replies: 471
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RE: PAS_63100_2024 - BSI guidance on BESS (battery energy storage systems) in dwellings

I think you are right, it borrows requirements of IEC 62485 'secondary batteries' - where for older battery chemistry types, Lead acid and NiCd, there...

1 year ago
Forum
Energy Storage
Reply
RE: Is this a bad installation and is there something wrong with my Samsung heat pump?

@derek-m interesting video. Stateside the defrost mode in A2A systems enables direct electric heating of the incoming air to avoid loss of heating fun...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Aira Heat Pump: Stylish Scandinavian Heating

It'll be a fairly standard R290 ASHP internally I think, covers, panels and grilles might be customised. They all come with serial Modbus comms now, f...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Assessing Heatmiser Neostat Accuracy: How and Why to Calibrate Them

Heatmiser Neostats are also used by Grant. Theirs are Grant branded, but identical items. They have up to 3degC adjustable differential if I recall, s...

1 year ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: PAS_63100_2024 - BSI guidance on BESS (battery energy storage systems) in dwellings

@guthrie - don't worry. PAS_63100_2024 is not a retrospective standard. Probably the large majority of current BESS installations will not comply, inc...

1 year ago
Forum
Energy Storage
Topic
PAS_63100_2024 - BSI guidance on BESS (battery energy storage systems) in dwellings
1 year ago
Forum
Energy Storage
Replies: 6
Views: 2665
Reply
RE: Is this a bad installation and is there something wrong with my Samsung heat pump?

Hi David, timing between defrosts varies based on outdoor temperature and humidity and how quickly the ice builds up. 30-60 minutes between defrosts i...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is this a bad installation and is there something wrong with my Samsung heat pump?

A defrost that's taking far too long would suggest a faulty 4-port reversing valve. The valve is a pilot operated solenoid device, common in all rever...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP & UFH

Great stuff - sound like to you a very good plan. EPCs can be notoriously inaccurate. It was only until quite recently the installation of a heat pump...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP & UFH

Always worth insulating the floor from the garage underside if there's reasonable access. If you store much in there, including cars, I would fire pro...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Homely launched for Grant Aerona ASHP control

@sunandair hi. Sorry for the delayed reply. I was considering the Grant Smart Controller as a retrofit for my ASHP, and had the good fortune to be off...

1 year ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Aira Heat Pump: Stylish Scandinavian Heating

I had a good chuckle at this. 😉 The Aira YouTube product launch was targeting Germany, Italy and the UK markets, as a group launch of branded Vaillan...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Page 12 / 42
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