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cathodeRay
cathodeRay
@cathoderay
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Illustrious Member
Joined: Feb 28, 2022
Last seen: Sep 15, 2025
Profile Activity
Topics: 17 / Replies: 2137
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Reply
RE: Designing ASHP system using the Freedom toolkit spreadsheet

You may have seen the discussion on these, both in the thread I started about my installation, and elsewhere. One interesting point is that Freedom ch...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Designing ASHP system using the Freedom toolkit spreadsheet

@editor - not sure where to post this here seems as good as any other place, as this thread is about using spreadsheet calculators. FWIW, this is my m...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

It certainly is, and interestingly, it clearly shows the model number nominal output (the number in the heat pump model name) is downright misleading....

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Designing ASHP system using the Freedom toolkit spreadsheet

Yes (its what I use). You need to do some hackery to the spreadsheet (google is your friend) and then open it in LO Calc, select all the cells in the ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Designing ASHP system using the Freedom toolkit spreadsheet

@hughf - Welcome, others more august will also welcome you soon as well. Be aware the Freedom toolkit spreadsheet is not perfect. It is good, and wa...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Worcestershire ASHP

@julianc - it will be interesting to hear what they actually do. I think the only specialist thing done during routine Midea servicing is checking the...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Worcestershire ASHP

I struggle not to think of the servicing rituals as nothing more than money for old rope, a nice cash machine for installers. Making warranties condit...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Reina Colona column radiator experience

I wonder if the Reina Colona column rads have a larger directly heated surface area? Looking at the three column version, each section has three water...

3 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: 14kW Midea ASHP in an old leaky building

@derek-m - yes, certainly an option, but I've always wondered how much benefit you get from wall reflectors, given they reflect back onto the radiator...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

Indeed. My room with the greatest heat loss is the kitchen, with its three (or rather two and a half) solid stone outside walls, a good half of which ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Valiant ASHP system in NE Scotland

Not all elected representatives are elected equal. The problem, which I chose to make my problem, which is nonetheless a very common problem: how t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

Thanks for the tips about detecting cold spots and drafts. On a windy day there are place near doors/windows where I can feel a draft, and during gale...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 172 / 180
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