Last seen: Dec 23, 2025
@jamespa it seems to run at max 27L/min until 45C and then ramps down to 14L/min at 60C then stays there at 60C 14L/min. I was absolutely cooking so...
I set the cosy 9 to 70C fixed flow today and let it have at it. Super interesting, when it reached 60C flow it began widening dT instead of...
@agentgeorge mine does switch back
@andrewj Certainly mine cycles alot below 36C, it seems "happier" with the weather compensated minimum flow temperature at 36ºC or above. I think the ...
It definitely doesn't have a regular weather curve control algorithm. Unless you "force" it too by setting a room target very high.
@jamespa the insides are very well done. High quality compressor and inverter. Such a large monolithic case is also an achievement in itself. Pe...
@jamespa I would guess it's a deliberate choice due the compressor selection, it's minimum stable compression ratio is probably close when at 34C. A...
@agentgeorge ESP32 since its what I had in the drawer
@batpred I think you probably got the wrong end of the stick with this supplier. Maybe stick to givenergy?
My fogstar seplos battery has been great and the service fantastic. I don't run an active balancer but did match and top-balance the cells. I wrote a ...
I was asked if I was happy before I was even issued the certificate in a handover pack.
@agentgeorge I don't need too because I sniff the modbus
Latest Posts
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RE: ASHP sizing - value of Heat Transfer Coefficient
Sorry, but I cant see what the point of this is unless ...
By JamesPa , 1 hour ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
TC Thermostatic Radiator Valve TRV Plastic Decorators S...
By Toodles , 5 hours ago
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RE: Ecodan unable to hit legionella target temp - what's the consensus?
UPDATE: Thanks everyone who commened with suggestions h...
By 9jwr9 , 9 hours ago
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How long will your energy contract last?
Some heat pump tariffs don’t run as long as a heat pu...
By Toodles , 2 days ago
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@morgan They are unsupervised these days, can’t get the...
By Toodles , 2 days ago
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RE: Setback savings - fact or fiction?
Exactly. We only need to compare conditions, to decide ...
By cathodeRay , 3 days ago
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RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff
I found because I have very low heat loss I can set bac...
By RadWhisperer , 4 days ago
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RE: Need Help Optimising My Rushed ECO4 Install: 12kW Bosch Heat Pump
Welcome @mickamills We too have an oversized 12kW Sa...
By Old_Scientist , 4 days ago
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RE: My Powerwall 3 Consumes 3-4 kWh/Day in Self-Consumption: Is This Normal?
@caron I can confirm that the power usage of the PW3 is...
By Old_Scientist , 4 days ago
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RE: Speedcomfort radiator fans
Thats true, but having tried (and succeeded) in constru...
By JamesPa , 4 days ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
@bash brilliant, thanks for the feedback
By energy9165 , 4 days ago
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RE: Heat Pump Heats the House… But It’s Not Cosy. Emitter Changes or System Tweak?
@alastair There I was, feeling grumpy, he said “Cheer u...
By Toodles , 4 days ago
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RE: Grant Aerona: Is there a setting to keep the 2-port valve open during pump blockade
Depends on OAT. Mine cycles at OAT>10 and of course...
By JamesPa , 4 days ago
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RE: New Fogstar 15.5kWh upright solution
@transparent My conclusion is as you have noted, tha...
By Bash , 4 days ago
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RE: Mitsubishi Ecodan R290 10kW performance
And to you too. Wishing you a very enjoyable festive s...
By Sheriff Fatman , 4 days ago
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RE: External pipework insulation
They do? But that isn't apparent from the photos we'r...
By Transparent , 4 days ago
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RE: Say hello and introduce yourself
@velcro welcome to the forums. Please feel free start a...
By Mars , 5 days ago
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Daikin EDLA11D3V3 DHW Settings
I have a newly installed EDLA11D3V3 which I'm still get...
By Velcro , 5 days ago
