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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Nov 21, 2025
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Topics: 17 / Replies: 2352
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RE: 14kW Midea ASHP in an old leaky building

The other thing I noticed out of the corner of my eye but didn't record was the flow rate went up. Mine is normally glued to 1.4 something, but I thin...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung 12kw efficient running. The little tweaks.

@editor - Mars, a dozen tee shirts with "I woke up at 02:40 this morning to check my heat pump" emblazoned on them should definitely be included in th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump user survey

I first read that brand name/logo on the right hand side of the letter head as uemonia - only two letters short of pneumonia! They just have't got a c...

3 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: 14kW Midea ASHP in an old leaky building

@batalto - I've just seen the Midea unit go through a defrost cycle on the Midea controller, I just happened to be looking at the LWT when it happened...

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

@mjr - I have given some thought to adding some sensors/automation, but as you say it is far from clear if they can be readily hooked into a Midea sys...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

If that gets an average vote, I wonder, how bad do they have to be to to get a poor/absolutely shocking vote?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

This is interesting. I have a similar age and construction house, but a lot smaller, near half the size, and I am using 40kWh/day, or also about £15/d...

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

@kev-m, @mjr, @mookyfoo, @derek-m - thank you all for your comments. I did do the setback over Sunday to Monday night (to 16 degrees on the kitchen ro...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: -5c this weekend!

My hope, if I ever need to do this, is that it will increase energy use and so costs (obvs, 14 => 16kW), but it should not adversely affect COP (mo...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

In the meantime, I've tracked this down, it is the so called radiator exponent n equation, which is used by rad manufacturers to calculate their corre...

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

I'm putting this here because it is in effect a continuation of this thread. For the past week, I have been fine tuning my heating always on weather...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

I had a number of installers take similar positions. They are jobsworths, hiding behind regulations. Solution? Fire them.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 178 / 198
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