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...
Latest Posts
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RE: The Great British Heat Pump Quiz
@allyfish thanks for the feedback and glad it was fun! ...
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RE: help sizing rads based on room by room heat loss
If its 1988W at DT 50, which is how most radiators are ...
By JamesPa , 1 day ago
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RE: Career change – entering the world of heating and heat pumps
@editor Mars, thank you. That's along the routes I was ...
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@editor thanks Mars, it's a rare occasion I'm looking f...
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RE: Efficiency Concerns on newly installed Mitsubishi Ecodan 8.5kW
@ashp-bobba and @jamespa - thank you both for all your ...
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Win one of five "Heat Pumps 101" Courses
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RE: Agile: average import cost vs other tariffs?
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RE: ASHP Ecodan L9 error - No Heating but Hot Water
@phoenix15 I'm no plumber so please don't take this as ...
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RE: Is this normal? Click of the DHW returning to space heating
@grantmethestrength Oh sorry to hear that, there should...
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@ashp-bobba TBH the ladies are rather disorganised, so ...
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And for those of us without an automatic irrigation sys...
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Logically, the lower frequency = more gentle, yes, but ...
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RE: Ideal Logic ASHP - change from 55°C to 35°C Heating?
Good point. I’ll keep my eye on the manifold temperatur...
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RE: How hard and expensive would it be to change panel and add battery?
@transparent It is a setting that Octopus make via the ...
By Toodles , 3 days ago
