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Last seen: May 31, 2026
Our smart meter install with OVO went fine. It's a lot bigger than the old meter we had before, but there was space. I find it more awkward to read ...
Hi Pat! We have a tiny 2.5kW(thermal, 660W elec) gshp, 4kWp solar, MVHR, 150mm EWI, 30kWh V2G car, 200l DHW tank, 4 bed highly insulated retrofit ho...
I think that did use to be a thing, but it is fraught with difficulty. Mice getting in, mould, stagnent water pools. All of these can be tackled - g...
I think you can make a pretty good guess that any floors installed prior to 1991 will have no insulation. A bit of googling gave U values over time (...
Hard to imagine how a hybrid inverter would be ok here. Imagine you got an Octopus Go tariff, charged up the batteries at cheap rate. Then discharge...
@sunandair You’re right, re-reading I wish I’d said it differently. Comparative measurements will be good! Caring, looking at the data is a great th...
I’ve never heard of a heatpump with MID certification - that would mean a certified accuracy of measurements. You can certainly buy heatpump power me...
I think the compressor would not like to be turned on when it is too cold (hence they often have heaters). Conversely, in warmer weather it may overh...
@cowshed_rich I don't think it's an inverter model - this says not: Perhaps you're right, and it's a "marginal COP" thing due to the DHW t...
That does sound surprising! I expect that you're right - the backup heater is likely to be an inline immersion somewhere. How do you measure the ...
@catapult I’m pretty sure that black thing in your pic is a magnetic water trap. Strong magnets inside pick up bits of circulating rust flaking of...
An Electrician will be able to fit a meter to your gshp system, and I think it's the first step in understanding if it is functioning well. I underst...
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Degrees of Separation
Latest Posts
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@transparent My statement about cutting large PV par...
By MK4 , 8 minutes ago
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RE: Indevolt Batteries UK Support & Info Thread
Agreed, these plug-in systems are little more that a po...
By Old_Scientist , 9 minutes ago
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RE: Renewables & Heat Pumps in the News
the Derril Water solar plant? I will cross-post. &n...
By JamesPa , 11 hours ago
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RE: HeatPump maintenance in Swindon area?
Sorry I can't but ... it sounds like a job any half dec...
By JamesPa , 15 hours ago
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My contribution is to wonder how your radiators are plu...
By springswood , 1 day ago
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RE: Powerwall 3 tripping RCDs in powercut
If I were to write a remote diagnostics chart for the P...
By Transparent , 2 days ago
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RE: Electricity price predictions
So now that I have just about managed to get full contr...
By bontwoody , 2 days ago
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RE: GivEnergy inverter tripping due to over-voltage?
possibly interesting to note the latest spreadsheet S...
By Tim441 , 2 days ago
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RE: Summer heat is becoming the new winter cold in the UK. What are you doing about it?
Our ashp service is booked for a couple of weeks from n...
By Judith , 2 days ago
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RE: Air Conditioning in Cars - What is this doing for the Climate?
In fairness, my EV has a heat pump in it which is theor...
By Majordennisbloodnok , 3 days ago
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RE: Can DNO change a G99 export allowance once approved?
Fair enough and mea culpa. I was responding to a comme...
By JamesPa , 3 days ago
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RE: Two heating zones to one zone
In your case, converting it to a single zone sounds lik...
By sarahstrachan , 4 days ago
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RE: Consultation on reform of Consumer Protection in the retrofit market
I agree with much of that, but that's a much wider refo...
By JamesPa , 5 days ago
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