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Last seen: Jan 14, 2025
oh dear oh dear. 22mm plastic is not a big enough pipe for a distribution trunk for a floor's worth of radiators in a system at ASHP flow rates. if it...
@crimson you could try increasing the pump power on the secondary side, that will increase head and flow rate thus increase your chances of getting a ...
hmm. I'm not liking what I see in picture pipes 2. You can there's a junction between a larger pipe and a smaller. That tells me that probably the...
@crimson pipes acting as radiators can be the issue accounting for temperature drop, but also flow rate. That plastic pipe in your picture, hard to ...
@crimson basically - exactly what toodles said! set all TRV's to max (or better, take them off) whilst doing lockshield balancing. The lockshield se...
@crimson have you tried (with all zones and all trv's open) pinching the lockshields down somewhat on the rooms that do heat up well, so as to force m...
@transparent @shaeney I'm impressed by the use of a Spirotech Spirotrap high flow rate low head resistance dirt filter. Its only the second one I've e...
@tobyg sounds good to me. much more likely your house is under 10kw heat loss than over and the lower modulation capability of the grant will help yo...
we're talking about the same thing. If you want to allow your room temps to vary by +-2c you'll need a 3rd party thermostat (thats a 4C swing). Not su...
@peterrsaltings not quite sure why you @'d me into here, I don't run legionella via my controller at all. I heat the whole tank to 55C every day with ...
@tobyg the 1C swing between on and off is native to the samsung controller when used as thermostat. if you want a different window to that, you need t...
you can of course adjust the flow temperature that it runs at post install. But, if you adjust it to lower than what your radiators have been sized fo...
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Latest Posts
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RE: Renewables & Heat Pumps in the News
@editor Maybe they have actually started harvesting the...
By Singlespeed , 5 minutes ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
Has anyone here had a Cosy 12 installed yet?
By Mars , 10 hours ago
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RE: How quickly would you want/expect heat recovery to take from setback?
But looking at your graphs, why are your LWT and RWT cy...
By Temperature_Gradient , 10 hours ago
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RE: How should the Boiler Upgrade Scheme be reformed?
Not quite, regular A2W heat-pumps need a load of extra ...
By Temperature_Gradient , 1 day ago
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RE: Heat Geek installations: share your experiences
one thing i learnt from reading people’s comments and e...
By Batpred , 1 day ago
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RE: Cooling/heating with one unit
"The way we use A2A on a cheap overnight EV tariff is t...
By mrkfm , 2 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
We have ‘signed on the dotted line’ today for a Panason...
By Toodles , 2 days ago
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
...or it was there and was lost thanks to laziness and ...
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@bobflux Thank you for your response. I am trying to ...
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This post is about how I successfully configured a buff...
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The installer visited yesterday and suggested the noise...
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
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RE: battery storage without solar
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