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Last seen: May 31, 2026
If you get windows replaced, then I think it's well worth getting low U value units in whatever the frames are. It's not simply 3G is better than 2G;...
As I understand it, if a slowly rising common mode DC is passed through the AC only type of RCDs then it will saturate the core in it, and then it can...
We have two car chargers with different plugs🙄 - a 32A one and a 10A one. The larger one is fed with 6mm2 cable from its own tiny CU (looks j...
I’ve seen our mains voltage very high on occasion, but I’ve never known anything happen due to it. We get 253V on a sunny day here - I looked in the ...
There’s no definitive magic deltaT for a heatpump, just pragmatic ‘generally optimum’. If you put more power into the water pump, the deltaT will redu...
That 2.5% cost increase every degC corresponds to my home-made graph pretty accurately. I was confused by the graph above at first, but then I unders...
Technically I could perhaps be called a heat pump designer, having designed and built the one gshp system that has heated our home for 3 years. It’s ...
Why do panels get damaged if not connected? When they are normally in the sun, they get 800W/m^2 evenly distributed, and they warm up everywhere. S...
In the solar panels. On a nice sunny day, a square metre of panels would get 1kW from the sun. Of this we might expect 200W of electical power if...
We had our gas meter removed too by Octopus, for free. It took the guy 20 minutes to do - he turned off the incoming gas lever in our cabinet, remove...
I notice on a pic on page 2 what looks like heatpump gubbins (buffer, tank, pump, pipes) in a cold ventilated loft? How much insulation is there in ...
As the boiler is just on/off at a given running temp, can you drop the temp down to the lowest acceptable, leaving it on most of the day (18hours+)? ...
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Degrees of Separation
Latest Posts
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RE: Tesla Powerwall (2) Calibration Cycles
@old_scientist You mean you didn’t know about that secr...
By Toodles , 9 hours ago
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
That sounds like a better approach (being able to see a...
By cathodeRay , 10 hours ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
Thanks for the reference @jamespa I can't see any te...
By Transparent , 11 hours ago
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RE: battery storage without solar
Indeed, current on the grid input = current used for ch...
By bobflux , 12 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu @papahuhu A lot of tears and sweat went into ...
By Andris , 14 hours ago
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RE: Getting closer to a finished Haier system
Very nice! Congratulations. Big MLC looks neat whe...
By bobflux , 20 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
We have the same problem, 12 mature trees clip the morn...
By Papahuhu , 1 day ago
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RE: Solis inverters S6-EH1P: pros and cons and battery options
I had a battery and inverter installed a while ago, my ...
By Batpred , 2 days ago
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RE: Is This Initial Free Quote From Octopus Trusted Partner Reasonable?
@ltron2 The EPC on our house is A-92, however that i...
By Rob of York , 2 days ago
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
The layout is confusing - much better like this: We b...
By downfield , 3 days ago
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RE: Is it just me, or does tradesperson timekeeping and communication drive you absolutely mad?
My experience, backed up by opinions from various frien...
By Majordennisbloodnok , 3 days ago
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RE: Analysis of the economics of switching to an A2W ASHP compared to other heat sources
I had a meeting today with a company based out of Swede...
By Mars , 3 days ago
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RE: Review your electricity provider
We were with Octopus in our old house and it was fault...
By ian33a , 3 days ago
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RE: Estimating true heat loss from twelve months of consumption data
I did, indeed, go with the 12 KW Vaillant unit.  ...
By ian33a , 4 days ago
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