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Last seen: Oct 28, 2026
@jamespa unlike some systems, the Grant Aerona does have the ability to install a firmware upgrade. The Grant support engineer told me that they are ...
@grantmethestrength In winter, one would hope that the heat pump compressor is running continuously, so then the water pump must be running all the ...
This church project has more in common with a commercial building than a home. Maybe an obvious point, but it is important to consider how quickly...
@jamespa I tried both settings. Pump blockade definitely controls the whether its internal water pump stops when the compressor stops. The energy...
@iaack I could still use weather compensation to control the flow temperature, even with Pump Blockade = Yes, but the room thermostat in the Grant Aer...
@dgclimatecontrol just to clarify, the water pump is inside the heat pump. It is controlled by the Grant Smart Controller that also contains a thermo...
Yes that is a very fair point. I was thinking of the situation where you really need a 10kW heat pump, but install a 12kW or 16kW. Other items could...
@jamespa thanks for sharing your analysis. We have a commercial scale gas meter installed. We used to have two boilers, but then moved to a single 4...
@ashp-bobba wow that is such a professional approach. I am really impressed!
Yes, I agree with your points. However, the risks are different in nature. If you oversize a heat pump, then the risk is that it is less efficient. ...
@batpred I suspect there is probably a heat pump owner maturity curve. People start by trying to get the last 5% efficiency out of the system. The...
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Should I change my cylinder when changing from a gas boiler to a heat pump.
I have 178 L Gledhill unvented cylinder which was fitte...
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RE: Plug and play solar. Thoughts?
Impressions so far from the one I've installed are that...
By EtchedPixels , 7 hours ago
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@batpred The Daikin temperature probe protrudes from th...
By Toodles , 11 hours ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor And as an occasional contributor, may I say wel...
By Toodles , 13 hours ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
They don't have to try. Our entire system is d...
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RE: Why don't people choose heat pumps?
Fair enough. I guess I was thinking of pipes that run ...
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RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
Got excepted for the grant now so thanks for the replie...
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Pretty much as I had guessed in my crude scaling from m...
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Well you have a vibration generator running at some fre...
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RE: Who's your electricity provider and what's your tariff?
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