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Last seen: Dec 10, 2025
I was intrigued by the analogy between heating a house and a bath with a leaky plug hole, so I created a spreadsheet simulating a bath 100cm long and ...
@willcb2023 I have a solar Iboost which heats my hot water from the electricity produced from my PV panels. It is connected directly to the immersion ...
@grahamh Do you mean ' less than 6 times a day' and '15 to 20 times a day' or per hour? 15 to 20 times a day does indeed seem to be nothing to worry ...
Dave Smith who makes this insulation is very helpful and has some excellent videos. The sealant is an essential part of the process and also the speci...
@derek-m Thanks Derek. I think we agree that the inefficiency of the buffer tank is in part due to the higher LWT required to provide the same heating...
@derek-m In order to get reliable flow round my pipe work, I would also need bypass valves, new diverter and pump etc - hence the cost. My dilemma is ...
if the difference between the flow temperature from the heat pump and the flow temperature from the LLH to the radiators is only 1.5°, then I would ex...
@derek-m Perhaps not necessarily a delta T of 5 deg C. I’ve seen @heacol state that 8 deg C delta T is most efficient. My ASHP is most efficient, alth...
@lfranklin when the domestic hot water is off then it will lose temperature at a rate depending on the temperature around the cylinder and pipes. Also...
@derek-m The easiest way that I found to do this was to set the weather compensation to 40 at minimum and 40 at maximum outside temperatures. That way...
@lfranklin On the wired remote controller, press the cogwheel icon, once to wake it up and the second time to go to the next screen. Then select sc...
@lfranklin If your hot water tank is in your loft and your loft is cold, then the noise you hear at night is probably the water in your hot water tan...
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Latest Posts
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RE: MCS Quality Audit – Has Anyone Had One? Did It Lead to Remediation?
@l8again I had one. The chap whom did mine seemed to kn...
By Papahuhu , 54 minutes ago
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RE: Samsung heat pump - data cable issue
Hi Old_Scientist. Samsung are saying tne use of an una...
By Steveimpey , 1 hour ago
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RE: Electricity price predictions
@papahuhu Groucho Marx had something to say about no...
By Toodles , 2 hours ago
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Given the way radiation and convection effects don't wo...
By Majordennisbloodnok , 4 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@jamespa haha very true, although the engineer yesterda...
By swwils , 7 hours ago
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RE: Vaillant Arotherm Pro vs new Plus
One of the test modes in the installer menu forces it t...
By JamesPa , 21 hours ago
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RE: What a difference a few degrees make.
Wow. Having accepted the challenge, I ran the cold tap ...
By Old_Scientist , 23 hours ago
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RE: HeatPump maintenance in Swindon area?
@vince31 have you tried using our finder:/p>
By Mars , 24 hours ago
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Looking for beta testers for a new homeowner heat pump tool
Over the past few months I've been building a brand new...
By Mars , 1 day ago
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RE: Indevolt Batteries UK Support & Info Thread
It depends on how you configure it via the app. The ma...
By JamesPa , 1 day ago
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RE: Renewables & Heat Pumps in the News
Be interesting if this results in any wider changes to ...
By Jeff , 2 days ago


