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bobflux
bobflux
@bobflux
Member
Estimable Member
Joined: Feb 22, 2026
Last seen: Apr 14, 2026
Profile Activity
Topics: 1 / Replies: 72
AllTopicsReplies
Reply
RE: Why Are Hydronic Ducted Fan Coils So Hard to Source in the UK?

Here in France fan coils are pretty rare for residential so when I contacted distributors they simply didn't want to talk to private individuals lol ...

4 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Grant Aerona3 13kw - Buffer Tank - Heating Journey

I assume the Wilo pump in the photo is on the load side, not the heat pump side. In this case changing the settings on the Wilo will not influence t...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My Powerwall 3 Consumes 3-4 kWh/Day in Self-Consumption: Is This Normal?

Every power conversion circuit has an optimum efficiency point. At low load, power required by the circuit itself becomes a significant part of the to...

4 weeks ago
Forum
Energy Storage
Reply
RE: No spare parts for Vaillant Ground Source Heat Pumps in the UK & major corrosion issue is another problem for GSHP

Bullshit. Rubber hoses do let in some oxygen, but that oxygen will travel in the circuit to corrode iron somewhere else. Just because some O2 enters...

4 weeks ago
Forum
Ground Source Heat Pump (GSHPs)
Reply
RE: No spare parts for Vaillant Ground Source Heat Pumps in the UK & major corrosion issue is another problem for GSHP

You can get an idea of what these shavings are: They're not rusty, so not steel. You can always try with a magnet. Crush it with some pliers to ch...

4 weeks ago
Forum
Ground Source Heat Pump (GSHPs)
Reply
RE: No spare parts for Vaillant Ground Source Heat Pumps in the UK & major corrosion issue is another problem for GSHP

Yeah if you have acidic pH it's going to be bad. I'm baffled at the size of these metal flakes, they're huge! This doesn't look like the usual sludg...

4 weeks ago
Forum
Ground Source Heat Pump (GSHPs)
Reply
RE: No spare parts for Vaillant Ground Source Heat Pumps in the UK & major corrosion issue is another problem for GSHP

What happened then? What do the lab results show?

4 weeks ago
Forum
Ground Source Heat Pump (GSHPs)
Reply
RE: No spare parts for Vaillant Ground Source Heat Pumps in the UK & major corrosion issue is another problem for GSHP

Here's an excellent explanation. If you have non barrier PEX underfloor heating, it is the most likely culprit as it is permeable to oxygen. Th...

4 weeks ago
Forum
Ground Source Heat Pump (GSHPs)
Reply
RE: Heat pump Surge protection

Nominal current is only 0.3A per phase, it's intended to protect public lights, not beefy enough for a heat pump.  

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Aerotherm 12+12kw cascade huge power utilisation

Yeah This may be expensive to fix (or maybe not) you should check your installer contract, see what kind of leverage and/or guarantees you find in t...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Solar Power Output – Let’s Compare Generation Figures

Recent daily electricity bills in kWh.  

1 month ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Aerotherm 12+12kw cascade huge power utilisation

What the hell. There is exactly one reason to use a heat exchanger on the main circuit: when fluids on both sides are different, for example: - He...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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