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JohnR
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JohnR
@johnr
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Estimable Member
Joined: Nov 25, 2024
Last seen: Apr 8, 2025
Profile Activity
Topics: 0 / Replies: 106
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RE: MCS heat pump pre-sale information and performance calculation

My house was given an EPC rating of B, which I felt was generous, because the process doesn't take account of some of the thermal deficiencies such as...

6 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

My system has one of the Telford Tempest cylinders with a 50 litre buffer tank in the bottom. It seems to work very efficiently (claimed COP of about ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Moving to single zone

Is that the flow temperature (which the heat pump decides) or the target room temperature (which is an input for deciding the flow temperature)? For e...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Smart meter installation – seamless or a potential nightmare?

Is a heat pump using a few kW continuously considered to be a more onerous design condition than an electric shower which could use 9kW but for only a...

6 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
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RE: Difficult positioning of air source heat pump

This is an awkward problem which provides a taste of the challenges arising from the objective of decarbonising home heating (IMO all new-build nomes ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fitting emitters with output greater than room heat loss.

I had the 7kW Arotherm+ installed a few months ago. It was what the only local installer who made a credible quote offered and my research had reveale...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Battery...Full house back up

Where is you distribution board? In the I would have expected, based on my installation, that proximity of battery to your distribution board to be mo...

6 months ago
Forum
Energy Storage
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RE: Watch Where Your Installer Fits Motorised Valves

FWIW, here's my cylinder after the pipework was finished and before the pipe insulation was added. The 3-port valve is very accessible. It's possible ...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Samsung E911 intermittent issue

I think it's this cylinder(I've got one).

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Watch Where Your Installer Fits Motorised Valves

Something I'll flag up here is that heat pumps need diverter actuator heads and not the more common mid-position devices. I'm aware of the differenc...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Who's your electricity provider and what's your tariff?

The surge management problem is an interesting challenge. One million batteries all starting to charge at 5kW is a 5GW load. IIRC, the Dinorwig pumped...

6 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Who's your electricity provider and what's your tariff?

Anyone can sign up to the Octopus Go tariff (I've been on it for several years and have yet to get an EV). The Intelligent Go tariffhowever, gives mor...

6 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
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