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Last seen: Jan 8, 2025
It was very easy for us as we live in a bungalow and everything goes through the attic and downwards. Having different sized pipes is OK. You have to...
@oswiu I think your option for the radiator would be (1) bigger pipes then either a bigger radiator or more than one radiator or (2) another pair of p...
@iancalderbank Isn't it the other way around? That is, if you make the flow rate lower - either by changing pump speeds (i.e. turning them down) o...
If your design temp is -3 deg or thereabouts, you're going to be using a lot less than 6kW nearly all of the time, as long as you adopt the 'slow and ...
The regulations say "The volume of the air source heat pump’s outdoor compressor unit (including housing) must not exceed 0.6 cubic metres", the Samsu...
Some numbers that are out there are its dimensions; 1270 x 1018 x 530 mm. I make that 0.68 m3, which is more than the current permitted development l...
@derek-m yes I did thanks. They came back and fitted the energy meter properly and it's up and running. I also managed to apply for and get the extra ...
Hi Mars, I suspected because I thought the rads were hotter than the compensation curve was set at. I bought some cheap aquarium thermometers and co...
@rich It's normally better to avoid too many zones. As you've found out, this can lead to only one room being heated at a time. As well as potentiall...
@mike-patrick I don't think it's a coincidence. When you add the fact that even a new gas boiler is only up to 90% efficient (and old ones are a lot l...
@gfletcher there have been many discussions on other forums about Ecodan standby power consumption. Some users report up to 200W on standby. Mine ...
I haven't calculated it but I've read it's about a 5% loss for a typical ASHP treated with a glycol based inhibitor vs pure water. That will add up bu...
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RE: GSHP Kaput After 16 Years: New Compressor or Switch to ASHP? Advice Welcome
On old (non inverter) compressors there’s sometimes a ‘...
By robl , 4 hours ago
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RE: Brown Oily Residue Blocking Air Vent and Weeping Relief Valve... Anyone Seen This?
I'll take a photo of it if and when I next encounter it...
By seoras , 6 hours ago
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Revenge is a dish best served cold. I too, as many know...
By cathodeRay , 7 hours ago
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RE: Heat Pump Pipe Sizing Question
@trebor12345rebor12345 I got the circulator curves from...
By bobflux , 10 hours ago
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RE: Jokes and fun posts about heat pumps and renewables
That particular Tracking system gets updated as soon as...
By Transparent , 17 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@editor It's available here -
By HarrisonC , 1 day ago
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@painter26 i am in Lightwater and midea trained. Sounds...
By Wizard , 1 day ago
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RE: Renewables & Heat Pumps in the News
@jamespa, for all I know they did have the coupling and...
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@andrewj ... well, clearing gutters is a worthwhile ann...
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RE: Anyone concerned about GivEnergy?
Here is the latest communication from GivEnergy regardi...
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RE: Indevolt Batteries UK Support & Info Thread
Can @editor please clarify: Does the Indevolt App com...
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@editor I too had a long list of questions, some of ...
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RE: Tell us about your Solar (PV) setup
3.84kWp of solar on our main South-East facing roof, in...
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RE: Mitsubishi Ecodan FTC6, Evohome & Economy 7. Getting Two Zones to Work Together
Lets step back. Why do you need/want 2 zones? The hea...
By JamesPa , 2 days ago
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RE: Vaillant arotherm plus heat pump frost protection
Yes, typically as close to the heat pump as possible. ...
By JamesPa , 2 days ago
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RE: Our 10 year old Grant heat pump failed
Back in the 70’s and through the eighties, one of my re...
By Toodles , 2 days ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support
@seoras Sorry to hear that. I found Vaillant very help...
By JamesPa , 3 days ago
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The Watchdog That Watched and Waited
On 9 January 2026, Consumer Energy Solutions collapsed ...
By Mars , 3 days ago
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RE: Valliant Heat Pump Settings
Thats arguably a sign of a good installer - they unders...
By JamesPa , 3 days ago
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RE: Electricity price predictions
Well, we have so many cases where rain water mixes with...
By Batpred , 3 days ago
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RE: Two heating zones to one zone
@profzarkov They arent obviously wrong, but the only...
By JamesPa , 3 days ago
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RE: Towns water feed to air source heat pump system
The DHW circuit cant be separated (well it could, you c...
By JamesPa , 3 days ago
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Solis AC-coupled 3kW storage inverter
Solis AC-coupled 3kW storage inverterPylontech batterie...
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RE: My NIBE ASHP Nightmare: No Commissioning, High Bills and a Hostile Installer
As @transparent has observed above, this is not bad, an...
By cathodeRay , 4 days ago



