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: Apr 29, 2025
@derek-m Many Thanks for the advice about setting the secondary Radiator Flow rate first. Then setting the primary, Heat Pump Flow rate ......
@jamespa Given that I have control of the Flow rates of both the Heat Pump and Radiator motors on either side of the Heat Exchanger ....... ...
@jamespa James, Great script. Let me read, and print this out.......... to summarise your argument. Excellent writing , but daunting to the...
@jamespa Actual Room Power Loss Measurement I agree with you , In Measuring the actual Room Heat Loss I have NOT taken the Heat leakage o...
@derek-m Hi Derek, From the Water Power Equation: Water_Power ( kW) = Specific_Heat_of Water ( kJ/(litres x T) x Delta_T x Flow_Rate (...
@jamespa NIC Visit The NIC will visit to asses my Heat Pump Installation, this some 18 months since the Heat Pump was "installed". I am...
@jamespa Samsung recommendation Given that live in Scotland , Samsung recommend that my Pipe Water Temperature, set with the Samsung Wate...
@cathoderay On December 15th , 2022 my neighbour chapped my door asking "are you all right?". He pointed out that my rear garden was covered...
@jamespa Hi James, My system has two Two Water Power control options : Water Power Control by varying the Water Flow Rate using the Grundfo...
@cathoderay Anti-Freeze valves ? What does happen after the Anti-Freeze valve fires ?.................................. Excellent Ques...
@jamespa I think that you, James, is correct...............................the Black ink with the magnetic particles may be coming from the s...
@derek-m Hi Derek , All of my Radiators, with ONE exception, were replaced during the installation. Also, All of the pipes were replaced with a...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: How Accurate Is My DIY Heat Loss Calculation?
@editor Thanks Mars, I have been enjoying playing with ...
By kilgorexv , 5 hours ago
-
New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
I am feeling baffled and worried:We are having a an Aro...
By GutoFfowc , 8 hours ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 11 hours ago
-
@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 11 hours ago
-
RE: Questions about A2A for heating as well as cooling
@donciccio I would suggest that you take a "fabric-fi...
By Rob of York , 11 hours ago
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 1 day ago
-
RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 2 days ago
-
RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 2 days ago
-
RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 2 days ago
-
@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 days ago
-
RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 3 days ago
-
RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 6 days ago
SPONSORS
