Last seen: May 21, 2025
@heacol Thanks, mate.
@robs Thanks for this. The statement about 8C was not mine. It came from a Brendon quote. The flow rate shown is the current one. Are you saying that...
@heacol I am sorry that this provoked such a reaction. Misinformation applies to me as well so I did warn you. I never made any definitive statements...
@jamespa @heacol Beware disinformation on this forum. I took some time out to verify the statement made about all the top performing heat pumps on...
@jamespa For the sake of clarity, in my previous response I ignored the house heat requirement at 15C OAT for a 10kW load at design temperature. The ...
@jamespa So, it seems that we have an empirical answer to your question rather than an engineering one. Therefore, from this input and context, I ded...
@jamespa You should best address this question to Brendon. I would also be keen for more clarification as it is fairly fundamental. I am not an insta...
@jamespa For a fixed pump in question on open loop, dT could be <2C at 15C. Below is another view on the topic with which I concur.
@jamespa Let me throw my hat into the ring on this one. If one accepts that a delta-T of 5C is required for correct operation of a heat pump, then he...
@jamespa @RobS. You are missing the point here. Part L states that EVERY room should have a thermostat to control the heat output. Practically then, i...
@RobS Don’t understand the logic here. If a thermostat shuts off a zone, its flow stops therefore the overall flow is reduced i.e. flow varies with st...
@ubert767 You may find this useful as well.
Latest Posts
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RE: What’s the modern take on advised types of insulation?
Grant was my local MP before he lost his seat. He was...
By Jeff , 3 hours ago
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RE: 5 Star Service from Havenwise
Thank you for tagging me @editor ! And thank you for th...
By HCas , 4 hours ago
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RE: Radiators downstairs are cooler at the bottom after ASHP install
@melonbuffet This is great assuming now the down stairs...
By ASHP-BOBBA , 6 hours ago
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RE: Commencing on an ASHP Installation Process
@jamespa Thanks for your input into this thread so far....
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The challenge is who pays, who holds the debt and the i...
By Jeff , 12 hours ago
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RE: Flow rate discrepancy between ASHP and manifold
That's useful thanks, I hadn't seen that table before. ...
By AshRolls , 1 day ago
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In principle I agree, @johnmo, but with provisos. The...
By Majordennisbloodnok , 1 day ago
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RE: Heat pump installation and BUS Grant timings
@jamespa Thats how I understood it too. 🙂
By ASHP-BOBBA , 1 day ago
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RE: Antifreeze top up for my heat pump - is this a rip off?
@sallyl That sounds about right if they are re-filling ...
By Brendon Uys , 1 day ago
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RE: Enabling WiFi: Samsung ASHP on Smart Things App
I would switch it off and see if anyone noticed. We use...
By Johnmo , 2 days ago
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I wouldn't be so sure about that. Heat pump designers ...
By JamesPa , 2 days ago
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RE: Jokes and fun posts about heat pumps and renewables
@toodles they're a rowdy bunch!
By Mars , 3 days ago
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RE: Getting the best out of a heat pump - is Homely a possible answer?
Actually I might try just turning it off and on again…....
By benson , 3 days ago
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RE: Home energy storage & battery register
@jamespa To a certain extent, by exporting to the grid ...
By Toodles , 3 days ago
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RE: Forum updates, announcements & issues
@editor Fairy Nuff Mars, I doubt that my ramblings woul...
By Toodles , 4 days ago
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RE: Confusion about heat pump sizing
We’ve published a deep dive into heat pump sizing, and ...
By Mars , 4 days ago
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We’ve published a deep dive into heat pump sizing, and ...
By Mars , 4 days ago
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RE: Kensa GSHP finally installed - now to start the optimisation process
Just had a quick scan of the manual and should be weath...
By Johnmo , 5 days ago
