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Old_Scientist

@old_scientist

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Prominent Member

Joined: Jun 16, 2024
Last seen: Oct 30, 2025

Topics: 6 / Replies: 303

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RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters

and we have some of the strongest tidal flows anywhere on the globe.

1 day ago

Forum

Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls

RE: Electricity price predictions

I cannot understand why heat pumps (and solar/battery) are not mandated for all new build properties in the UK. I know the government are unlikely to ...

1 day ago

Forum

Electricity, Tariffs, Monitoring & Providers

RE: Radiator Sizing Dilemma: Vertical vs Type 33 for Low-Temperature Heat Pump Systems

This looks OK. Overall you have roughly the right amount of heat going into each floor. What is the design temps for the bedrooms? Is it already low...

1 day ago

Forum

Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls

RE: How can I programme a setback for my Samsung Gen6 8kW heat pump?

I'm not familiar with Hive thermostats/controllers, but as @jamespa says, not all external thermostats work well with heat pumps. Mine has 3 different...

1 day ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Radiator Sizing Dilemma: Vertical vs Type 33 for Low-Temperature Heat Pump Systems

I would second this. It's great if you can balance radiator output exactly to the design heat loss for the room, but I wouldn't get too hung up about ...

1 day ago

Forum

Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls

RE: Electricity price predictions

And therein lies the dilemma. Investing in net zero is expensive. Not investing in net zero may be more expensive in the long run. Who knows, although...

2 days ago

Forum

Electricity, Tariffs, Monitoring & Providers

RE: One room is colder than the rest of the house

Is that because it's putting out more heat than the property requires at this time of year? ASHPs can only modulate their output so low (typically to ...

2 days ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Electricity price predictions

Investors need a return, otherwise they will invest elsewhere. You can get a risk-free return of over 5% on a 20yr government gilt, and riskier inve...

2 days ago

Forum

Electricity, Tariffs, Monitoring & Providers

RE: Replacing knackered oil boiler with Samsung ASHP - Perthshire

This is how I run my Samsung 12kW ASHP with a 3rd party external room thermostat, so I can manage or control the cycling. I refer to this as "always o...

5 days ago

Forum

Air Source Heat Pumps (ASHPs)

RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters

I wholeheartedly agree with everything @allyfish has written, and our journey was similar. We had microbore piping in our old system. Until we st...

6 days ago

Forum

Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls

RE: Mixergy Tank Failure

@bontwoody so pleased it's finally working. Yes, this is what threw me when I read your post yesterday - how were you recording flow for 1min wi...

1 week ago

Forum