Last seen: May 14, 2025
James, On your question: Please explain why a higher flow rate is inefficient and undermines control. When a single pump serves multiple zones, ...
James, Your questions cut right to the core of why these discussions matter. One thing I’ve noticed over the years — and this thread really highli...
@jamespa Whether zoning is needed depends on how the occupants use the space, the layout of the house, and how heat losses vary between areas. It’s n...
The biggest mistake in zoning is basing the zones on superficial factors, such as dividing areas by North, South, East, West, or even upstairs and dow...
You’re absolutely right that many past attempts at zoning and hydraulic separation have failed to deliver the desired results. Poor results, short-cyc...
Hi Colin — you’ve clearly thought deeply about the system design, and your questions reflect exactly the kinds of practical challenges that are often ...
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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 hours ago
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@morgan They are unsupervised these days, can’t get the...
By Toodles , 2 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@kevh it's worth remembering that many lsvs only actual...
By JamesPa , 24 hours ago
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RE: Setback savings - fact or fiction?
Exactly. We only need to compare conditions, to decide ...
By cathodeRay , 1 day 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 , 1 day 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 , 2 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 , 2 days ago
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RE: Speedcomfort radiator fans
Thats true, but having tried (and succeeded) in constru...
By JamesPa , 2 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 , 2 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 , 2 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 , 2 days ago
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RE: New Fogstar 15.5kWh upright solution
@transparent My conclusion is as you have noted, tha...
By Bash , 2 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 , 2 days ago
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RE: External pipework insulation
They do? But that isn't apparent from the photos we'r...
By Transparent , 2 days ago
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RE: Say hello and introduce yourself
@velcro welcome to the forums. Please feel free start a...
By Mars , 3 days ago
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Daikin EDLA11D3V3 DHW Settings
I have a newly installed EDLA11D3V3 which I'm still get...
By Velcro , 3 days ago
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RE: Midea ASHP – how to set weather compensation
@curlykatie did you get sorted with this?
By MickaMills , 3 days ago
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RE: MyVaillant Connect Regular Disconnect
Thanks. Yes, if the time is consistently 11pm every nig...
By buckwem , 4 days ago

