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Old_Scientist
@old_scientist
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Joined: Jun 16, 2024
Last seen: Mar 4, 2026
Profile Activity
Topics: 6 / Replies: 352
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RE: Mixergy Tank Failure

@bontwoody I couldn't see from the graph, but what temp do you heat the DHW to, and how hot does it get to in 30mins? Is it just not able to heat to...

4 months ago
Forum
Domestic Hot Water & Cylinders
Reply
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.  

4 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
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 ...

4 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
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...

4 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
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...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 ...

4 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
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...

4 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
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 ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

4 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
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...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

4 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
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...

4 months ago
Forum
Domestic Hot Water & Cylinders
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