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Last seen: Jun 26, 2026
Hi there @bajj, you've cracked it I think with setting parameter 21 41 to 2degC. UFH will have a very slow hysteresis response as the mass of the floo...
This is strange @martyj76, if the unit was installed by a Grant G1 installer, and has been annually serviced by a Grant G1 service engineer, it will b...
E.ON has launched their Cosy Octopus copy tariff product, 'E.ON Next Pumped' with 2x3hr low rate periods, 4am-7am & 1pm-4pm, just like the origina...
@wanttobegreen sure, 2x6.5kW. Which gives a useable storage capacity of about 12kW. For the majority of the winter we can charge 9kW into the batterie...
Andy's assertion that anyone with batteries can power their home in a storm [implying they can draw from the batteries when the grid is out] betrays h...
@wanttobegreen as per Toodles' advice. The Solar PV batteries in winter coupled with Cosy electricity tariff are a game changer. 85% of our electricit...
Some Daikin systems use PWM speed controlled pumps, I'm not that familiar with them, so the total system heating flow rate may vary according to heat ...
Hi there @pie_eater, absolutely right to try it single zone 'open loop' first, and see if it's a success. Buy or borrow an infrared thermometer or, ...
Yup, must be the R32 model. The larger R290s are not available wholesale yet.../p> Trying to find out who the Chinese OEM is of the Grant badged R29...
Ditto Major. 2x6.5kW Growatt batteries timed to charge on 2 of 3 low rate periods with Cosy Octopus each day. There's a third unused time slot on both...
Something knackered on the monobloc heat pump unit that wasn't maintenance related. So not blocked filters, strainers, coils, etc. Poll description ed...
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@andrewj I personally don't like domestic fan coils, pe...
By swwils , 12 hours ago
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RE: Vaillant Arotherm Pro vs new Plus
One of the test modes in the installer menu forces it t...
By JamesPa , 13 hours ago
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RE: Mitsubishi Ecodan FTC6 settings
I think @majordennisbloodnok has put together an excell...
By F1p , 14 hours ago
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RE: Electricity price predictions
@toodles Didn’t happen with me on IOF once, and I was o...
By Papahuhu , 16 hours ago
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RE: What a difference a few degrees make.
Wow. Having accepted the challenge, I ran the cold tap ...
By Old_Scientist , 16 hours ago
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RE: HeatPump maintenance in Swindon area?
@vince31 have you tried using our finder:/p>
By Mars , 16 hours ago
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Looking for beta testers for a new homeowner heat pump tool
Over the past few months I've been building a brand new...
By Mars , 16 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
It depends on how you configure it via the app. The ma...
By JamesPa , 18 hours ago
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RE: Renewables & Heat Pumps in the News
Be interesting if this results in any wider changes to ...
By Jeff , 1 day ago
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Heat Pump Fundamentals For Homeowners
Months in the making. Finally live. I've built an onlin...
By Mars , 2 days ago
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If Reform were to win, I suspect that many of the AR7/8...
By Old_Scientist , 2 days ago



