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Last seen: Jan 14, 2025
this needs qualifying. The "install a system that won't get any complaints or callbacks but we don't care about efficiency" approach installs an LL...
@bontwoody no (as per previous post) I optimise for lowest cost at "decent but not best" efficiency by doing 1 full reheat a day, during the night. Bu...
@bontwoody if you''re on a cheap night tariff the cheapest time to fully heat DHW is at night (less efficient but costs less). If no cheap tariff then...
the smallest amount slower that you can reliably engineer. The thing you are trying to tune out is mixing of hot and cold flows within the LLH, which ...
kudos to yourself for helping your neighbour this way. on DHW, I do the exact opposite of what your chap said. I let the cylinder get as cold as I c...
@paulrlondon did they flush the system round after the last piece of major radiator / pipework? good practice would be to push a load of water through...
@cathoderay flow rate tweak - yes my bad, I had it in my head we were balancing flow rates with an LLH. It hadn't occurred to me that it wouldn't make...
@cathoderay I thought a bit more about the flow rates thing. with a Buffer / LLH it matters to get them balanced, as that minimises the effect of mixi...
@crimson the only places for TRV's in an ASHP system are a) a room with large solar gain b) bedrooms, you may want them to run cooler than the rest o...
@crimson one little known fact , particularly by "ex gas fitter" plumbers, is that zone valves themselves slow the flow down. A "typical boiler style"...
I'm not sure if its me and I'm going mad, but the "preview" button at the bottom of the compose box seems to have disappeared since the move to the ne...
<spits blood> even grahamh the man who was freedom, advocates bufferless now. oh B411s, thanks, missed that. In that case @swanny we need t...
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Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
..... Post deleted, but website won't let me!
By JamesPa , 11 minutes ago
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RE: Missing flow temperature in Heat Geek proposal
I was told that installer doesn’t get to see the system...
By L8Again , 3 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
And how does the Powerflex firmware 'know' that it is p...
By Transparent , 4 hours ago
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@trebor12345 If you select the Change Rate Plan button,...
By Toodles , 7 hours ago
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@grahamh-energy-donkey — thanks for the clarifications....
By cathodeRay , 11 hours ago
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RE: Jokes and fun posts about heat pumps and renewables
@majordennisbloodnok Well, I can use such terms as HMRC...
By Toodles , 1 day ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
I'd picked up that there was a leak coming from around ...
By Sheriff Fatman , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
Great info. Thank you. Regards Pete
By peterackstraw , 1 day ago
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RE: Microgeneration Certification Scheme (MCS)
@jamespa A cynical view but, I fear that it is a fair ...
By Toodles , 2 days ago
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RE: Samsung heat pump - data cable issue
That's well done. Cable is the correct type (LIYCY = 2x...
By bobflux , 5 days ago
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RE: Electricity price predictions
I agree, we will find out at the next budget whether th...
By Old_Scientist , 5 days ago
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RE: Air to air bus grant installer anywhere
The through wall two hole ones have their place (listed...
By EtchedPixels , 5 days ago
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I hope it goes ok, Hon can be hard to set up IF the sof...
By Graham Hendra , 5 days ago
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