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AllyFish
@allyfish
Contributor
Noble Member
4193 kWhs
Joined: Oct 31, 2022
Last seen: Mar 12, 2025
Profile Activity
Topics: 22 / Replies: 457
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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...

12 months ago
Forum
Energy Storage
Topic
PAS_63100_2024 - BSI guidance on BESS (battery energy storage systems) in dwellings
12 months ago
Forum
Energy Storage
Replies: 6
Views: 1972
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...

12 months 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...

12 months 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...

12 months 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...

12 months 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...

12 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, 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)
Reply
RE: Aira Heat Pump: Stylish Scandinavian Heating

No data sheets or produce literature yet, but a very glossy product launch. It's a branded Vaillant product, so it should be good. I'm not a great fan...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Interesting article - flexible TOU tariffs, BESS and heat pumps
1 year ago
Forum
Energy Storage
Replies: 2
Views: 770
Reply
RE: Refrigerant in Daikin Altherma HHT taking hours to heatup

That's revealing. The house may be super insulated, but typically a Victorian property would have solid walls and non-insulated floors. Do you know mu...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Refrigerant in Daikin Altherma HHT taking hours to heatup

Depends on the heat loss of your house and how warm you are wanting it. Defrost can effectively de-rate a heat pump's output capacity if the time take...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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