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Last seen: Jun 26, 2026
2025 - now a record year of Solar PV Generation. October 30th any our Solar PV generation has exceeded 3740kWh, our previous yearly record in 2023 for...
Hi @colinc. Your concerns are well-founded. At least you can make a well-informed decision either way. The laws of physics and thermodynamics can't be...
@jamespa the point is it allows variable secondary flow rates lower than the primary. In some circumstances that requires hydraulic separation where t...
Hi @Crimson. Hmm, this isn't surprising. When Grant are pushed they often revert to the default Aerona Schematics, which, by the addition of a lot of ...
Well, it sounded all too good to be true. And it was. After several months hanging on the waiting list, I finally poked Octopus into giving me an up...
@old_scientist I had an automatic float type air vent on my old open heating system at the top of the circuit. It only had a small static head of abou...
We have a manual air release valve on top of the Grant Low Loss Header/volumiser. This is a good location as the velocity through the system is lowest...
Hi @josephiah, there's quite a good range of small commercial 3Ph electric heat pump units, or reversible chillers. Example:/span> Many use R290 pro...
@howardp99 it might have saved me £8 compared to the price rise details announced 20th Sept. I didn't updated my spreadsheet with those. Were an all-e...
I've singed up to the fixed Cosy Octopus tariff. The fixed 12month rate is currently slightly cheaper than the October 2025 Cosy price rise rate. it's...
Hi @sbm74 - wow, 650m2 - that's a big pile! But, 60degC max flow temperature - eh, what, why? Building regulations also set the maximum design flow ...
A few years ago all external condensing units and monobloc heat pumps had fairly robust protection grilles fitted to the coil face, which could be rem...
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Degrees of Separation
Latest Posts
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@andrewj I personally don't like domestic fan coils, pe...
By swwils , 6 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 , 7 hours ago
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RE: Mitsubishi Ecodan FTC6 settings
I think @majordennisbloodnok has put together an excell...
By F1p , 8 hours ago
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RE: Electricity price predictions
@toodles Didn’t happen with me on IOF once, and I was o...
By Papahuhu , 10 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 , 10 hours ago
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RE: HeatPump maintenance in Swindon area?
@vince31 have you tried using our finder:/p>
By Mars , 10 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 , 11 hours 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 , 12 hours ago
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RE: Renewables & Heat Pumps in the News
Be interesting if this results in any wider changes to ...
By Jeff , 1 day ago
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Heat Pump Fundamentals For Homeowners
Months in the making. Finally live. I've built an onlin...
By Mars , 1 day ago
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If Reform were to win, I suspect that many of the AR7/8...
By Old_Scientist , 2 days ago
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