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JamesPa
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Jun 10, 2026
Topics: 25 / Replies: 4955
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RE: Help me keep the faith with my air source heat pump installation

It does feel like you may have a genuine fault, unfortunately perhaps not bad enough to convince the manufacturer easily. Id be tempted to collect ...

7 months ago
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RE: SCOP with DHW

All understood. Basically you are planning on creating a recirculating loop. There are a couple of threads running about this with people complaini...

7 months ago
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RE: Don’t Install a Heat Pump Until You Read This

The last bit of that is bad. Thats just badly (well appallingly) designed UFH and most likely the fundamental problem here - half your energy is goin...

7 months ago
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RE: SCOP with DHW

Unfortunately COP for DHW will always be lower because it requires a higher flow temp and thats how the thermodynamics work. 52C is high however, you...

7 months ago
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RE: Electricity price predictions

Er not sure that is universally true. Mine is cheaper overall to run that my gas boiler would have been, by about 20% or thereabouts. I have radiato...

7 months ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

Firstly you are getting your units mixed up which is a little confusing. kW is power (how fast you are driving), kWh is energy (how far you have gone...

7 months ago
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RE: Buffer tank bypass on EDF Ideal heat pump installation

I would bypass the buffer tank in one of flow or return only, it will then act a bit like a volumiser. The problem you have relatively to a tank th...

7 months ago
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RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira

I agree with all of that. 220 pages is perhaps 210-215 pages too much. Unfortunately there is no substitute for (a) understanding some basics (which...

7 months ago
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RE: Don’t Install a Heat Pump Until You Read This

@davidnolan22 Perhaps you could post some more info about your setup, house and system and WC parameters - you never know it may be possible to diag...

7 months ago
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RE: Help me keep the faith with my air source heat pump installation

OK. I have 2.8 for DHW and 3.4 for space heating running at an actual FT of about 36. Yours does seem a bit low depending on what FT you were runnin...

7 months ago
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RE: 10kw heat pump run in 24*7 data?

Don't forget to increase max ft also. Mine is set to 55, way clear of the curve. I think that might even have been the default.

7 months ago
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RE: 10kw heat pump run in 24*7 data?

Suggest, as a test, you turn up the WC curve a lot so any change or not is unambiguous. I'd also set max ft to say 55 to get this parameter out of th...

7 months ago
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