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Prunus
@prunus
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Estimable Member
Joined: Apr 6, 2021
Last seen: May 26, 2026
Profile Activity
Topics: 5 / Replies: 70
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Reply
RE: National Grid ESO peak hour rebate

It turns out Octopus have an API for reading the times of future (and past) 'saving sessions', as well as the points you've earned. I hacked up a qui...

4 years ago
Forum
Electricity, Tariffs, Monitoring, Electrics & Providers
Reply
RE: Heat pump servicing and maintenance

NRM Plumbing and Heating (St Neots, Cambs), £120+VAT. According to the invoice, checked the filters, glycol mix, outdoor unit. I didn't ask for a lis...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Buying a house with an ASHP – what to look out for and what questions to ask?

If I were buying a place with tech I wasn't familiar with, I'd probably look for an expert to do an inspection. Surveyors are common for structural i...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Install a Grant Aerona 13kW instead of Mitsubishi Ecodan 11.2kW?

@FJJ Over the last few weeks I've commissioned a switch from an external Honeywell Lyric controller to using the ASHP's own controller. I need to wri...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Towel rails

If your towel rail has an electric heating element, one solution is to fit a boost timer on it. For example this one should be a drop-in replacement ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Anyone want to share costs on batteries?

Just an addition on the subject of sourcing your own cells: a lot of the cells on offer on the likes of Aliexpress are some variation on factory rejec...

4 years ago
Forum
Energy Storage
Reply
RE: Anyone want to share costs on batteries?

One solution to that is multiple batteries and multiple inverters: dual ME3000SP each feeding its own stack of batteries. Then they can operate in par...

4 years ago
Forum
Energy Storage
Reply
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 + ...

4 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...

5 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 ...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Balancing radiators with heatpumps
5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 7
Views: 6323
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...

5 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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