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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...
Latest Posts
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RE: Seeking ideas / information / commiseration - Pure Drive
@colinc I think if I had a clear way to achieve what we...
By Little Lights , 4 minutes ago
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Got myself in a pickle. I have two types of plugs, but ...
By David999 , 23 minutes ago
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@jamespa Great, thanks - I've had a quick look at the a...
By Little Lights , 3 hours ago
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I am seeing an increasing number of occasions when my G...
By DavidAlgarve , 4 hours ago
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@transparent I have been a little reluctant to select "...
By DavidAlgarve , 5 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@andrewj I have no heating load right now so haven't...
By swwils , 6 hours ago
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RE: Rate the quality of your heat pump design and installation
Flawless, by John MacIver, Seaforth Heating and Plumbin...
By claireisamazing , 7 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
@anne-smith Glad to hear you know the benefits and its ...
By dgclimatecontrol , 8 hours ago
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RE: End-of-Life Heat Pumps: How Do You Dispose of an ASHP in the UK?
@editor Thanks Mars. I look forward to the subsequent ...
By DavidB , 10 hours ago
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RE: Anyone concerned about GivEnergy?
Fair enough. Its interesting that opentherm (for boil...
By JamesPa , 10 hours ago
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RE: Brand and installer questions for ASHP
A tank solely in the return (upstream of where the retu...
By JamesPa , 10 hours ago
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RE: UK DIY Battery: SEPLOS 48V 200Ah x2 + Sunsynk 8K – Safe Installation for Garage Conversion
thank you to all who have already replied. I have been...
By madsid , 11 hours ago
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RE: Home automation and the cloud; is there a better way?
+1 It's not just cloud though. Many devices have repla...
By bobflux , 1 day ago
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RE: Summer usage. Why is my Vaillant Aerotherm using so much energy on "heating"?
So the red bars are 'DHW' and the yellow bars 'heating'...
By JamesPa , 1 day ago
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RE: Indevolt Batteries UK Support & Info Thread
Have you tried cutting the grid feed to see what actual...
By JamesPa , 2 days ago
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Contractors pack for inta antifreeze valves are around ...
By ASHP-BOBBA , 2 days ago
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RE: Renewables & Heat Pumps in the News
Critics and naysayers will be negative whatever the gov...
By JamesPa , 2 days ago
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RE: Microbore heat pump installs
In principle you are almost certainly right, but in pra...
By JamesPa , 2 days ago
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RE: Electricity price predictions
@old_scientist We are a low mileage home, so bulk of ou...
By ChandyKris , 2 days ago
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RE: What is the main ‘dictator’ of Agile’s unit price?
@toodles I keep an eye on wholesale prices and energy m...
By ChandyKris , 2 days ago
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RE: Upgrading my system, how far do I go?
For comparison, my PW3 with 11.04kW inverter, will char...
By Old_Scientist , 2 days ago
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RE: Changes to Tesla Powerwall Charging Regime?
Elon gate - legendary! I take my hat off to you @toodle...
By Old_Scientist , 2 days ago
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RE: Mitsubishi Ecodan not good enough ?
Thanks @goody, appreciate the feedback and sorry you ha...
By marcexec , 3 days ago
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RE: Minimum and Zero Disrupt Heat Pump Installations
True (first sentence) Thats the reason to consider th...
By JamesPa , 3 days ago
