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Last seen: Jul 1, 2026
Nudging this for visibility - *any* thoughts gratefully received...
To be sure, the FTC is the 400mm ish square white box whereas the main remote controller is the small one with the screen on it. LOL! Relo...
Where's your main remote controller (the small screen thing)? I'm fairly sure the temperature displayed is the ambient one around it, or alternativel...
Nice* * Were you / your installer able to calculate a head figure from your diagram, then? Assume that you then chose a pump based on other criteri...
If the legionella is unticked I doubt it'll come on as the installer states. In your first photo it's not on timer - it's running continously. ...
Do you know your immersion/booster actually works as it should? Check your legionella prevention settings to see when it's next due to happen and se...
BTW your SD 'memory' card is dark, showing 'abnormal operation'
@ak2024 - that symbol is immersion or boost, not legionella - see: Also I assume your probe is mid-to-lower in your cylinder so it will only show ...
What were your drivers for replacing the pumps and removing the LLH, other than the 'usual' better design + increased efficiencies? That's prett...
Are you able to share your pumps and cylinder details?
I may very well come back to you for some detail on that pump at some point in the near future 🙂 I was referring to this: OK, that may ...
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Latest Posts
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RE: Who's your electricity provider and what's your tariff?
Yes, looks like very slight increases in the unit rate ...
By Old_Scientist , 1 hour ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 2 hours ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 3 hours ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 4 hours ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 5 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 21 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 21 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 2 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 2 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 4 days ago


