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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Jan 7, 2026
Profile Activity
Topics: 20 / Replies: 3841
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RE: Setback savings - fact or fiction?

The costs, if any, are not that great - see my calculation above and comment about (non-) condensing boilers. When I abandoned setback and turned my...

2 hours ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

By 'no recovery penalty' I mean no efficiency penalty because it has to work harder to supply the extra energy needed to replace the energy lost durin...

2 hours ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

This topic will run and run for sure The misunderstanding many suffer from (and the controls industry almost actively encourage this misunderstandin...

2 hours ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

Only the manual The commissioning documents state which inverter model it is.

2 hours ago
Forum
Energy Storage
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RE: New Mitsubishi Ecodan 11.2kW installation - L9 errors and maybe more

Your installer is probably right. The L9 error means low flow, and if the zones aren't open this will be the reason. You cant fix the error without ...

3 hours ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rodents! A word of warning for heat pump owners

Im sure there are plenty of gags to be had linking MCS and rodents of various types!  

5 hours ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

Thanks everyone, this is going to take some analysis so it might take a while before I respond fully. Of course any further inputs are appreciated! ...

6 hours ago
Forum
Energy Storage
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

There is room outside but only the other side of the house to the garage. The CU is in the garage so it would require a long run of cable to connect ...

8 hours ago
Forum
Energy Storage
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

Thanks. The concept of daisy chaining the inverters is attractive in principle as there is no ambiguity what's happening! It also makes for a simple...

9 hours ago
Forum
Energy Storage
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

Thanks. The concept of daisy chaining the inverters is attractive in principle as there is no ambiguity what's happening!

9 hours ago
Forum
Energy Storage
Reply
RE: Weather compensation- why you should use it

I agree. I have been advising another user with a Hitachi heat pump and that does have the ability to program more complex wc curves. Given how the...

9 hours ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation- why you should use it

Thats quite plausible particularly with radiators. Radiator output is not a linear function of surface temperature unfortunately, its (usually) pro...

9 hours ago
Forum
Air Source Heat Pumps (ASHPs)
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