Last seen: Feb 27, 2025
@cathoderay thank you for the data. It includes information on the fan speed, that's helpful! The data show's your room temperature is 25C and never...
@cathoderay thank you for sharing the most resent set of data, I'll work through that. Are you able to create a table of numerical data, or can you o...
Evening all, An air to air heat pump system might be a possible solution, but I'm not F-Gas registered so couldn't install one. I'd like to keep co...
@transparent Hello. This will not be covered on any grant scheme, I'll be paying the full cost from own pocket 😉 The garage / workshop is a stand a...
@lucia It would be interesting to know the volume of your system and typical flow temperature. Bob
Hummm......larger system volume would have more energy stored in the water so the bulk average water temperature reduces less when the defrost cycle h...
This is a very complex problem. I know with a gas boiler increasing the flow temperature makes the device burn more gas, but how does a heat pump ma...
Hello, TL;DR I think you have the weather compensation set too high at low OAT, try dropping the upper setting to 50C. I've been going over the d...
oh that's a shame. I was hoping I could learn something about the minimum duty your system can handle so I can optimise my design for low duty operat...
Thank you for the quick reply. I thought I saw you mention you had a plate exchanger in your system, which is why i asked if you had a drawing. Do y...
Hello there, I'm new to the forum. I see that cathodeRay has made many posts about his Midea ASHP does not seem to behaving properly, there are sever...
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Heat Pump Dramas?
Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.
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Latest Posts
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RE: Baxi Air Source Heat Pump tips and tricks please
@cathoderay Ok, that's odd. The Baxi chap came yesterda...
By Cathyem1 , 3 minutes ago
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RE: Split system and pipe lengths for air source heat pump installation
@johnmo got it. Thanks.
By nickmorgan , 10 minutes ago
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Is that because the only people who will quote for 45C ...
By JamesPa , 1 hour ago
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RE: Battery storage to run Heat Pump.
OVO already offer such a rate. Only for certain makes ...
By JamesPa , 2 hours ago
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RE: Setback savings - fact or fiction?
And finally, the R version tidied up a bit and larger, ...
By cathodeRay , 4 hours ago
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RE: Looking for the Grant Aerona 3 setting to turn off completely at 20 OAT
Hi @damonc, parameter 2015 is the maximum outdoor air t...
By AllyFish , 4 hours ago
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RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
@broadsman I run mine on water law but with regards the...
By bontwoody , 5 hours ago
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RE: Ecodan ASHP - How to optimise my set up?
Thanks everyone for posting this, so much useful info t...
By Bamnio , 5 hours ago
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RE: Samsung Gen 7 R290 12kW is not behaving how I expected
I have the same pump and if I am operating it correctly...
By Broadsman , 7 hours ago
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?
@editor Will get back. Lots to try. Thanks to everyon...
By cliffhanger , 7 hours ago
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RE: Towel rails. An unexpected final hurdle
I had a similar issue but convinced the installer to le...
By Pie_Eater , 18 hours ago
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RE: What is the best strategy for operating a very oversized heat pump?
This whole discussion highlights just how much of a mes...
By Mars , 18 hours ago
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RE: NIBE F2040 12 kW heat pump and 100 liter buffer tank
@cheshirejohn thanks for the update and for sharing. I’...
By Mars , 19 hours ago
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RE: SolarPV tables / online calculator
We've only had our solar since last June, but so far fo...
By Old_Scientist , 21 hours ago
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@robs useful thread! Thanks for sharing - Octopus are c...
By big_si , 22 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@jamespa Agreed. I think it’s a case of much over muchn...
By Mars , 24 hours ago
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RE: Heat Pump Sizing & Installation Costs
Perhaps useful to have installed date too? To get conte...
By Tim441 , 1 day ago
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RE: F.788 Building circuit pump reports internal fault - Vaillant Arotherm
Guess I have to wait for engineer visit. I really hope ...
By jeegnesh , 2 days ago
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RE: Act now to defer the UK road tax increase on EVs
@majordennisbloodnok Damn right sir. my attempt at iron...
By Jancold , 2 days ago
Latest Topics
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Battery storage to run Heat Pump.
By Broadsman 7 hours ago
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Heat Pump Sizing & Installation Costs
By Mars 1 day ago
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SolarPV tables / online calculator
By MichelleC 2 days ago
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Samsung Gen 7 R290 12kW is not behaving how I expected
By Joshua 2 days ago