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cathodeRay
cathodeRay
@cathoderay
Moderator
Famed Member
Joined: Feb 28, 2022
Last seen: Oct 24, 2026
Topics: 18 / Replies: 3076
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RE: Massive Electricity Cost

Summary from the Midea app for yesterday: 24 hour ambient -0.12 degrees (whatever that is), 93kWh used, or £35.34 at today's cap price. That's £247.38...

4 years ago
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RE: 14kW Midea ASHP in an old leaky building

@mjr - thanks, very useful, and I agree about the defrost cycles being short, and taking the heat mostly from the primary side, as I mentioned the rad...

4 years ago
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RE: 14kW Midea ASHP in an old leaky building

@batalto - we all but posted at the same moment. I have considered flipping the dips, but am holding back, because kWh usage is already unsustainably ...

4 years ago
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RE: 14kW Midea ASHP in an old leaky building

I have checked the Midea controller every 5 mins or so over the last hour having set the LWT to 55 degrees. What I observed was: ambient -2 most of th...

4 years ago
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RE: 14kW Midea ASHP in an old leaky building

There is certainly a lot of modbus stuff in some of the Midea manuals, but I have yet to do my homework on what modbus is, though I'm guessing it is s...

4 years ago
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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...

4 years ago
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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...

4 years ago
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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...

4 years ago
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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...

4 years ago
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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...

4 years ago
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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?

4 years ago
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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...

4 years ago
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