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Last seen: May 8, 2026
@derek-m For older heatpumps or fridges that don't have an inverter, starting up the compressor is quite stressful, the unit literally twists on th...
@cathoderay Often these days you can borrow a thermal camera, lots of organisations have them. Eg. Cambridge Carbon Footprint will lend one out fo...
Bear with me on this…. Most base things we measure are quantities, not rates… Miles, kg, apples, bananas. The rate for miles is then in miles per hou...
@chickenbig You can borrow a thermal camera from Cambridge Carbon Footprint, free:-). They offer training courses too, free:-). I’m in Cambridge,...
@heat-pump-newbie Yes, just as you say it’s terrible with metal surfaces. You can sometimes program in the emissivity, I think ‘mine’ defaults to ...
@editor I use my companies Flir camera - I think it's E40, or something like that. It was pricey (£5k), but that was ages ago, they're all much ch...
I remember listening to a keynote talk in a conference by Renault about 5 years ago, where they said the same thing - that the future of EV cars invol...
@Transparent I did see the Cenex report, and yes that is the trial we are on. For me the report lacked in engineering detail about CO2 saved due to...
We have a V2G wallbox, for our leaf, on a trial with Ovo. So far as I’m aware, there are just a few small scale trial V2G to date similar to ours, us...
We have 4kWp of (mcs) solar, and subsequently a V2G unit by Indra for which there is a G99 A1-1 form stating the overall export is <16A per phase, ...
Hi Alan Do you have an EPC, does that agree with the 45MWh/year heating + DHW? Has your electricity consumption been similar after the units wer...
I suspect it is very common for installers to avoid using weather compensation, and instead set a constant high flow temperature. It makes for a quic...
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Latest Posts
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RE: Sizing an ASHP; Heat loss and kW
Annual consumption is almost certainly better than an E...
By JamesPa , 1 minute ago
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RE: UK warm homes plan - how can it be delivered?
No rule that says we do so far as I know. Like much o...
By JamesPa , 13 minutes ago
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Grant Aerona R290 (15.5kW) - How is DHW Target Temp calculated?
Hello all, We have just had a Grant Aerona R290 insta...
By TaffontheTaff , 1 hour ago
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RE: Setback savings - fact or fiction?
Indeed, I can well imagine that a heat-pump based syste...
By PeterWurmsdobler , 4 hours ago
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Loud noises in the night - and one for the toolbox?
I was woken at 5am on Sunday to a very loud noise, akin...
By JamesPa , 6 hours ago
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RE: Advice on Vaillant Sensocomfort
The latest Vaillant announcement I saw said that they w...
By JamesPa , 6 hours ago
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RE: Debugging my legionella immersion heater
I notice this (66 is rather hot) with my legionella cyc...
By JamesPa , 18 hours ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
@transparent I thought you would spot that wind turbine...
By Batpred , 18 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@swwils there is no logic to oversizing a heat pump. It...
By AgentGeorge , 1 day ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 2 days ago
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RE: Forum updates, announcements & issues
I have been doing a lot of work on the site lately and ...
By Mars , 2 days ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 2 days ago
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RE: My Grant R290 9kW Heat Pump Installation
I am following this thread with great interest and than...
By TaffontheTaff , 2 days ago
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RE: Estimating true heat loss from twelve months of consumption data
@ian33a — I have a sort of residual interest in this pr...
By cathodeRay , 3 days ago



