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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 11, 2025
Profile Activity
Topics: 17 / Replies: 2826
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RE: Is My Midea Heat Pump Inherently Defective?

I haven't used named ranges either more than a couple of times previously, but I found following the formulae with eg d23^d22*d2/2 difficult to follow...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 4 port buffer tank connections

You have answered your own question, at least in part In addition the pumps either side often aren't balanced properly so you get mixing, resulting i...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Underfloor heating: Diagrams with COP 'per water flow'

Unless its 'out of range' I dont think it materially affects COP (directly) which is why you wont see it plotted. The essentials of water flow are ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 4 port buffer tank connections

Maybe With 6 fan coils you probably do need a volumiser (2 port buffer) because of low system volume, but fan coils alone aren't sofaik an argument ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 4 port buffer tank connections

Very likely better still if it looks like this:

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Smart TRV experiences (ideally integrating with Midea heat pump)

Thanks. That's what I had personally understood although I hadn't clocked that you call them FBVs (good idea btw!) @madbilly is trying to do someth...

8 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Is My Midea Heat Pump Inherently Defective?

I think the energy balance model of setback I posted a few days ago (attached again) is not a bad approximation and certainly exhibits all of the qual...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide

Homely gets good reviews on this forum. The Samsung controller historically is a bit lacking in features (maybe the later ones are better) and homely...

8 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Ideal Logic 10kW Heat Pump Pipes Noisy and Very Expensive to Run

Is your unit the R290 or the R32 model I dont know the specific wiring of the Ideal heat pumps but I think what you say is very probably the case. ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide

Here is the corrected url to the other thread/p> Without vastly more information about your system and the measurements that I care to ask (and like...

8 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Is My Midea Heat Pump Inherently Defective?

Not stepping on toes at all. Its an interesting discussion how best to determine heat loss, which is so key to getting a heating system design right....

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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