Last seen: Dec 18, 2025
@windsor-tg Sunsynk battery data sheet./p> Seems to indicate no de-rating between 0 and 50degC. 'Operating temperature' might be inside the battery,...
Solar diverter for DHW = free (when surplus solar) * Heat pump for DHW = 200-250% efficient (by far the most efficient electrical method of producin...
That's a tidy install @windsor-tg. Li-ion batteries only tend to de-rate charging capacity below 0degC. How often does your garage get below 0degC? Yo...
Hi @adamm, nothing special, 30mm sealed argon filled PVCu DG units, to front of house 2yrs old, to rear of house 15yrs old, 200mm loft insulation. PVC...
@adamm. MCS energy consumption predictions for my Grant 10kW ASHP were well out for both estimated existing and future. So far out as to be disregarde...
Hi @ =adamm, I am 70 miles south o' the border, in North East England. But converted oil boiler to ASHP a year ago. No regrets, but quite a learning e...
@transparent they are Craig and Derricott EPV252 25A 2 pole rotary isolators. Designed for DC voltage and Solar PV isolation, 25A @ 800V.
@transparent black isolators are DC solar PV isolators, two strings, one 4 panel, one 5 panel. I await the DC MCB from L R Renewables by Mail and a da...
All done now, 13kW storage. But the installer forgot to include a 125A DC MCB to the new battery, so a percentage of the cost withheld and they’re com...
Hi @Tufty Insulation looks adequate, it's a little short on one of the external pipes to the unit, and a little untidy inside, and missing over isolat...
Yes. We light the log burner some evenings now, more for the aesthetic rather than the comfort. It takes the chill off the house and saves putting the...
Glycol - good for frost protection, not so good for thermal performance. Be mindful that increasing the concentration of glycol to lower the freezing ...
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RE: GSHP WOES! Midland based engineer recommendations?
@johnbroome perhaps, does it rise in pressure when heat...
By ASHP-BOBBA , 9 minutes ago
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RE: Ecodan Pump Issues… Circulation pump turns off when heat pump compressor turns off
can you see here it not like a set of steps every 20 mi...
By ASHP-BOBBA , 11 minutes ago
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So I hear the export MPAN that UKPN assigned should be ...
By Batpred , 2 hours ago
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RE: Recommended home battery inverters + regulatory matters - help requested
From what I read, the Solis has a very long list of err...
By Batpred , 2 hours ago
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RE: Ideal HP290 14kW ASHP - how to optimise
Roughly this should cost you £250-£300 per peak month a...
By ASHP-BOBBA , 3 hours ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?
@jamespa thank you again. I know using the offset to tr...
By MairiA , 4 hours ago
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RE: New Daikin 11kW Altherma 3M install - is it working as it should?
@toodles Thank you for your input. As the days have got...
By Synthbuilder , 6 hours ago
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RE: Advice for a novice on Mitsubishi Ecodan 6kW
Frost Protect/Freeze Stat is an operation mode, where D...
By F1p , 7 hours ago
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RE: Fan unit Making terrible noise HELP!!
@gutoffowc Oh no, sorry to hear that, are you in the Ke...
By ASHP-BOBBA , 8 hours ago
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RE: Sunsynk Whole House Backup Issue
@sheriff-fatman - could you please re-post that in the ...
By Transparent , 9 hours ago
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RE: Running my new Nibe ASHP efficiently
I didn't. I spent a while manually messing around with ...
By jamieheatpumpnew , 11 hours ago
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RE: I’m glad the cold spell is over!
I comparison with the 65kWh used above yesterday was on...
By Judith , 11 hours ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
I should think so, I thought that pretty much universal...
By JamesPa , 12 hours ago
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RE: Setback savings - fact or fiction?
I'm also inclined to look into how a defrost is actuall...
By cathodeRay , 12 hours ago
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MLCP (Multi-Layer Composite Pipe) for ASHP
@editor nope. The info you reported was sufficient for ...
By iotum , 22 hours ago
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RE: Experience - New Build / Complete New Heating System
@vincro I would be surprised if it is much above 5 to 6...
By ASHP-BOBBA , 23 hours ago
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RE: Post-Traumatic Heat Pump Stress Disorder
Yes bang on and maybe I can illustrate that by way of e...
By iotum , 1 day ago
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