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BobTSkutter
@bobtskutter
Member
Estimable Member
539 kWhs
Joined: Jan 11, 2025
Last seen: Feb 27, 2025
Profile Activity
Topics: 1 / Replies: 85
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Reply
RE: Double heat pump for DHW?

@transparent Yes, all those reasons crossed my mind when I was designing the original system. To answer your original question, please see the attac...

1 month ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Is My Midea Heat Pump Inherently Defective?

@cathoderay It's great your house is now getting too warm, we're making progress. It looks to me as though the average ASHP power is higher with the...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Double heat pump for DHW?

Sure, here's bunch of pictures. The plate exchanger is shoe horned into the back of the airing cupboard, it's not easy to get photos of. ...

1 month ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Double heat pump for DHW?

@Transparent it's an interesting proposal. I don't think the energy balance quite works. The radiators and hot water tap remove energy from the sys...

1 month ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Is My Midea Heat Pump Inherently Defective?

@cathoderay this is great news. I'm pleased we're getting somewhere. There's a noticeable step change in the power output starting with the 18:00 re...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is My Midea Heat Pump Inherently Defective?

Hello, Sounds like the flow goes through the magnetic filter before it gets to the PEX, so that's good. 22mm and 1.8m3/hr is about 1.3m/s. I thin...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is My Midea Heat Pump Inherently Defective?

A brief explanation of reading vendor pump curves. Here's a simple heating system. It's got 3 radiators, each one can be turned on or off separatel...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is My Midea Heat Pump Inherently Defective?

Something else crossed my mind when I posted on a discussion about the order components should installed. You mentioned you reversed the direction o...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is My Midea Heat Pump Inherently Defective?

Hello All,I'm conscious I've turned up on the forum and am writing these long posts full of apparent technical detail. I've been troubleshooting heat ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mixing of pipework/components' with different internal dimensions - theory vs reality/practical approach

Hello All, remember your designing a loop transferring liquid water. The pump just moves the liquid round in circles. It makes no difference to syst...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is My Midea Heat Pump Inherently Defective?

@cathoderay I'll put something together about pump curves and system curves. But to help you, I suggest the following: Open all the TRVs and locks...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is My Midea Heat Pump Inherently Defective?

Hello, I can explain all the pump curve information, but it will take a while for me to put some pictures together. For now, lets work on the basis t...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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