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Last seen: May 29, 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.
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RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Yeah, great catch. So this will reduce the total number...
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@susannasaunders When you come to get quotes for A2A...
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RE: Say hello and introduce yourself
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JamesPa The chart explains well how the heat curve an...
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Please bear in mind, everyone, that in order to use thi...
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RE: The good, the bad and the not that great – my heat pump installation
@burtis Thanks for posting this and Im so pleased you ...
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RE: I need help with Ecodan ASHP
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews your installer would be right to say that the...
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Actually, that's a very important point. I've only ev...
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RE: Aerotherm and weather compensation
These are likely inked. The basic explanation is tha...
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RE: Electrical works for air to air heat pump
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Good to hear that you found a solution. Absolutely a...
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RE: Are there any comparisons of DHW heat stores around?
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