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.
Latest Posts
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RE: Humidity, or lack thereof... is my heat pump making rooms drier?
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RE: Electricity price predictions
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RE: What determines the SOC of a battery?
@batpred Ironically you didn't have anything good to...
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RE: Testing new controls/monitoring for Midea Clone ASHP
Here’s a current graph showing a bit more info. The set...
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RE: Setback savings - fact or fiction?
True there is a variation but importantly it's understa...
By RobS , 4 hours ago
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Below is a better quality image. Does that contain all ...
By trebor12345 , 5 hours ago
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Sorry to bounce your thread. To put to bed some concern...
By L8Again , 5 hours ago
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@painter26 — they (the analogue gauges) are subtly diff...
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Our Experience installing a heat pump into a Grade 2 Listed stone house
First want to thank everybody who has contributed to th...
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RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP
Welcome to the forums.I assume that you're getting the ...
By Sheriff Fatman , 12 hours ago
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RE: Say hello and introduce yourself
@editor @kev1964-irl This discussion might be best had ...
By GC61 , 14 hours ago
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RE: Oversized 10.5kW Grant Aerona Heat Pump on Microbore Pipes and Undersized Rads
@uknick TBH if I were taking the floor up ...
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RE: Getting ready for export with a BESS
I would have not got it if it was that tight
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RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump
@judith thanks Judith. Confirmation appreciated. The ...
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RE: Recommended home battery inverters + regulatory matters - help requested
That makes sense. I thought better to comment in this t...
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Bosch CS5800i 7kW replacing Greenstar Junior 28i
My heat pump journey began a couple of years ago when I...
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RE: How to control DHW with Honeywell EvoHome on Trianco ActiveAir 5 kW ASHP
The last photo is defrost for sure (or cooling, but pre...
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RE: Plug and play solar. Thoughts?
Essentially, this just needed legislation. In Germany t...
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RE: A Smarter Smart Controller from Homely?
@toodles Intentional opening of any warranty “can of wo...
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RE: Safety update; RCBOs supplying inverters or storage batteries
Thanks @transparent Thankyou for your advic...
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: Odd_LionManufacturer: SamsungModel: Samsu...
By Odd_Lion , 2 days ago
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RE: Configuring third party dongle for Ecodan local control
Well, it was mentioned before in the early pos...
By F1p , 2 days ago
