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Last seen: Mar 16, 2026
@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...
Roof trusses and dry lined ceilings are a massive sounding board. This is a very common issue with sparks who screw bathroom extract fans direct to ro...
Central heating still switched off and will be until October. The Octopus Cosy account has built up a good credit over the summer, but I have over a t...
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RE: Cooling with air to water heat pumps
Another detail, as I understand it, is that with the us...
By springswood , 1 hour ago
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RE: GivEnergy inverter tripping due to over-voltage?
Many thanks for the helpful and educational inputs! I...
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RE: Failed Heat Pump Install: IWA Claim Rejected
Many of the estimates we received mention IWA and RECC....
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RE: Rural burning – I've had enough
Same here in Finland. It's strictly forbidden ...
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RE: Renewables & Heat Pumps in the News
Something worth flagging... we've just published a news...
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
The Homeowners' Q&A podcast is back... I've changed...
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RE: Anyone concerned about GivEnergy?
I have already signed up with Axle so yes, that takes c...
By KevH , 16 hours ago
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I think its quite likely a failure to think it through ...
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@batpred Would it pass the airbnb feedback test no. I...
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A quick update... we've just launched the beta version ...
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RE: Who Actually Owns a Heat Pump in Britain? We Asked. Here Is What We Found.
The age part doesn't surprise me - only 25% of UK home ...
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RE: Home automation and the cloud; is there a better way?
Nothing you've said there, @etchedpixels, is something ...
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I've heard from others living in the vicinity of Derril...
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RE: Being screwed over by Volkswagen Audi Group
@morgan, much as I like the cars they produce, I can't ...
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