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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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RE: Where heat loss surveys seem to go against practical reality
It's not there because it is January data (was clear in...
By cathodeRay , 22 minutes ago
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There arent many of these hitachi pumps around here so ...
By JamesPa , 2 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
I think trying to deduce flow rate from an instantaneou...
By JamesPa , 2 hours ago
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RE: 7kW EV Charger Options Advice
I’ve had an EV with wall charger for over 3 years and t...
By AndrewJ , 4 hours ago
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My Adapt is finally installed and running! Almost a yea...
By tomasmcguinness , 4 hours ago
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 3 days ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 3 days ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 3 days ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 3 days ago
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It’s been out a few days and Amazon has already attache...
By Mars , 3 days ago
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RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 3 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 5 days ago
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