Last seen: Oct 2, 2025
@jamespa You don't need to predict anything. A PI controller effectively does all these.
@jamespa Every house needs a specific heat power to bring it to a set temperature. This means a specific water temperature. If you lower this temperat...
@cathoderay OK. It is difficult to argue through messaging. I ask you to bear with me. There are 3 ways to control a Midea heat pump, but in the 3rd m...
@jamespa I refer to the Midea controller thermostat, not an external one. This said, I do not pretend to know what heat pump designers design, but the...
@jamespa Modern heat pumps are inverter driven. A room thermostat will not turn the pump on and off, but regulates it evenly around the set point. Thi...
I really don't see the point of using a weather curve when an indoor thermostat is available. A heat pump that adjusts according to a set indoor tempe...
Latest Posts
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It’s been an eventful few weeks, and I want to thank Ri...
By Mars , 27 minutes ago
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RE: Solar Thermal DHW and ASHP
@kenbone how is your battery holding up Ken? Still goin...
By Mars , 44 minutes ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Old Samsung R410a unit 9kw, modbused controlled, let Ha...
By KenBone , 1 hour ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
I had a very similar fault, it sounded like someone too...
By Grantmethestrength , 2 hours ago
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RE: Replacement Inverter for old FIT system
@bontwoody I have a single string 3kW solar AC inverter...
By Old_Scientist , 5 hours ago
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Octopus removed our gas meter for free a couple of year...
By robl , 5 hours ago
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RE: Bosch CS5800i 5kW - Experience So Far
Good to hear of peoples experience with both your type ...
By dgclimatecontrol , 7 hours ago
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RE: How to Understand Wiring Up a Heat Pump
@renewables345 I completely agree with @transparent a...
By JamesPa , 8 hours ago
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RE: Why Air Release Valves and Deaerators are Non-Negotiable
I think that's a key point. An air-release valve shou...
By Transparent , 11 hours ago
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RE: Say hello and introduce yourself
Hello everyone. My partner and I recently had a Bosch C...
By Steelbadger , 13 hours ago
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RE: Heat Pump Installers: Competence, Illusion and the Hard Truth Homeowners Must Face
@pirate-rich there’s a lot to do and plan, and the wish...
By Mars , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
@adamk Its a bit complex: My 28mm primaries run for a...
By JamesPa , 1 day ago
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Can you separate out the scop data between hot water an...
By Andrew J H , 1 day ago
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RE: Solar Power Output – Let’s Compare Generation Figures
Further, these bar charts may throw a few more lumens o...
By Toodles , 1 day ago
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RE: Heat pump and wifi kit connection.
Wi-Fi kit covers any Samsung device that has a modem in...
By Alfapat , 2 days ago
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RE: Sizing - Save me from my headache
If you get an R290 pump you should be able to heat the ...
By JamesPa , 2 days ago
