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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Jan 8, 2026
Profile Activity
Topics: 20 / Replies: 3850
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RE: Recommended home battery inverters + regulatory matters - help requested

Again thanks.   Noted and safety issues are fair enough. The disappointment is (a) the extra CU and more particularly (b) the need to d...

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

Thanks Ah, so that places the 'off grid' port of the inverter between grid and load so protecting the grid. However it does introduce another co...

1 hour ago
Forum
Energy Storage
Reply
RE: Radiator sizing sanity check

As I mentioned early on the cost of supplying and fitting a few rads is negligible. It certainly shouldn't come to legal proceedings if this is the b...

3 hours ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Radiator sizing sanity check

Thanks for the update. As you say you are now piggy in the middle. Its sometimes said that legal cases are won by those with the best filing syste...

3 hours ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

@batpred, @transparent thanks   Since the inverter isn't between the mains and the CU, does this need an (automatic?) cut out device that ...

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

Thanks all for the help, this seems to be nearly as complex as heating!   My current thought process, and the remaining questions, are this: ...

4 hours ago
Forum
Energy Storage
Reply
RE: Advice for a novice on Mitsubishi Ecodan 6kW

I hadn't spotted that there were two pumps in the UFH (well spotted!) but I had recognised the risk that the upstairs rads weren't getting enough wate...

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

Never assume it makes an ass of u and me! You need the return temp to be lower than about 55 for a boiler to condense. If you start of with a FT of ...

5 hours ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Mitsubishi Ecodan 11.2kW installation - L9 errors and maybe more

Before I answer your specific questions just one more thing to highlight. The upstairs rads may well be big enough, but because your heatmiser is (pr...

5 hours ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

22 hours ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

22 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...

22 hours ago
Forum
Air Source Heat Pumps (ASHPs)
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