Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
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.
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Vaillant Arotherm Pro vs new Plus
@judith @jamespa Our installer used screed drying mo...
By Batpred , 2 hours ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
It’s here
By avenir , 2 hours ago
-
Hi everyone, I’m looking for real-world advice and co...
By asoksevil , 5 hours ago
-
I knew that Reactive Power support was required by the ...
By Transparent , 6 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
Those are very good questions and indeed ones I was ask...
By JamesPa , 10 hours ago
-
For cooling a whole building, or even a big room with l...
By EtchedPixels , 10 hours ago
-
RE: Comms and power cabling to outside unit
@old_scientist 100%, the cover is for warrantied unit...
By Papahuhu , 10 hours ago
-
I don't remember the manufacturer name, but I saw simil...
By bobflux , 12 hours ago
-
RE: Weather compensated secondary circuits with Biomass
UFH is ideal to get max efficiency with a heat pump, bu...
By bobflux , 12 hours ago
-
RE: Rate the quality of your heat pump design and installation
I had a Heat Geek lead install by Green Heat Norfolk. T...
By Orlando , 1 day ago
-
RE: Mitsubishi Ecodan FTC6 settings
While @F1p's dongles are great, the FTC can do this its...
By RobS , 2 days ago
-
RE: Samsung heat pump - data cable issue
If it's a data cable, current will be minuscule, voltag...
By bobflux , 2 days ago
-
RE: MCS Quality Audit – Has Anyone Had One? Did It Lead to Remediation?
I got hit with an RHI audit in 2022. It was far from c...
By Abernyte , 2 days ago
-
Hi,is there any Haier super aqua gt users on here,that ...
By Glenn Crawford , 2 days ago
-
RE: Electricity price predictions
@papahuhu Groucho Marx had something to say about no...
By Toodles , 2 days ago
SPONSORS
