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JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Dec 15, 2025
Topics: 19 / Replies: 3685
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RE: Setback savings - fact or fiction?

I should have asked what does 'matched pairs' mean? Also how long was the setback (in days) in each case?

3 hours ago
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RE: Setback savings - fact or fiction?

Fascinating. If I was asked to guess before you presented the data, I would have guessed that there might be a separation at higher OATs (where water...

4 hours ago
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RE: Mitsubishi Ecodan 11.2kW heat pump with low COP

Thats very plausible and would also account for low COP. Repressurising the refrigerant may fix temporarily (and prove its the problem), but the ques...

5 hours ago
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RE: Mitsubishi Ecodan 11.2kW heat pump with low COP

Thats a sensible figure. I dont know temps in October in Romania but you said 12-17. 950kWh consumption is way too much indicating I am guessing a f...

6 hours ago
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RE: Mitsubishi Ecodan 11.2kW heat pump with low COP

Do you mean switching parts of the circuit in and out. If so that is potentially a problem, but not the most important one to focus on just now. &n...

6 hours ago
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RE: Mitsubishi Ecodan 11.2kW heat pump with low COP

Welcome to the forums and I am sure you will receive much help   We will need more data to diagnose but here are some questions/comments ...

7 hours ago
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RE: LiFePO4 lithium battery fires and explosions

Apart from relative immaturity and slightly larger per unit power stored, what are the issues which lead you to say this?

7 hours ago
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RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira vs OVO vs EON.Next vs Boxt

HG are estimating a lower loss overallwhich might explain it if existing rads are only just undersized with BGs estimates. That said more rad upgrad...

8 hours ago
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RE: Help with heat pump sizing

@amin   I dont think materially relative to this (I assume 'nominal' means the output at which they measure all the other various parameters...

1 day ago
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RE: Help with heat pump sizing

Unfortunately you will almost certainly need to go a layer deeper and look at the detailed specs (which are not always easy to find) to work out what ...

1 day ago
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RE: Poll for Time of Use, tariffs, technology

You are absolutely right. I think another common factor may be whether the battery is installed at the same time as solar or is an add on to existi...

1 day ago
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