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Prunus
@prunus
Member
Estimable Member
166 kWhs
Joined: Apr 6, 2021
Last seen: Aug 25, 2023
Profile Activity
Topics: 3 / Replies: 53
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RE: Anyone want to share costs on batteries?

Let's price up some bits: Sofar ME3000SP battery storage inverter (3kW output): £780 Pylontech US2000 2.4kWh battery: £728 Total for inverter + ...

3 years ago
Forum
Energy Storage
Reply
RE: Balancing radiators with heatpumps

I found this helpful: Makes the point that what we really want is to balance the room temperatures, rather than the radiator temperatures, so thi...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Balancing radiators with heatpumps

@derek-m Thanks. For the purposes of balancing, does it matter if the value is 12, or 8 or 5, as long as they're all the same? In other words, when ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Balancing radiators with heatpumps
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 7
Views: 4000
Reply
RE: Whilst Regs allow on-off simple thermostats (Nest, Hive, Heatmiser, Honeywell, etc) Installers should never be responsible for failing heat pumps!

@alec-morrow I agree, but there are two different things people use controllers for. One is temperature control, ie the core control loop of when to...

3 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Valves, Radiators & Controls
Reply
RE: Whilst Regs allow on-off simple thermostats (Nest, Hive, Heatmiser, Honeywell, etc) Installers should never be responsible for failing heat pumps!

@ianjrw As mentioned above, can you ask your installer about using the heatpump's own controller? What brand of heatpump are they suggesting? Let m...

3 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Valves, Radiators & Controls
Reply
RE: Install a Grant Aerona 13kW instead of Mitsubishi Ecodan 11.2kW?

I don't know yet. Let me explain... I was in exactly the same situation 3 months ago - lead times on the Ecodan cylinders were out to 12 weeks and ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: DIY Heat Pump controller (driver)

@derek-m The integer overflows are just warnings, and I don't think they're the source of the problem. It seems to be saying is the program is too bi...

3 years ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: DIY Heat Pump controller (driver)

I need to work on my Hungarian, but some wild guesses that it could be either a problem with communication with the Arduino - perhaps the programming ...

3 years ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Whilst Regs allow on-off simple thermostats (Nest, Hive, Heatmiser, Honeywell, etc) Installers should never be responsible for failing heat pumps!

It's completely nuts. This is the compressor speed of my Grant (aka Chofu) ASHP, using the Honeywell Lyric on/off controller the installer supplied. ...

3 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Valves, Radiators & Controls
Reply
RE: Published noise vs measured noise

To add, another thing is the sensitivity of the occupants. I specifically chose a larger double-fan heat pump because it was quieter (60dB) than a sm...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Review your air source heat pump

Hi Mars, I can't help but feel conflicted about this. I'd say there are several factors in play for a heat pump install. Site: the type of hous...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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