Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: May 15, 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...
Latest Posts
-
Agreed, but I still think the only thing they could con...
By ASHP-BOBBA , 33 seconds ago
-
RE: Vehicle-to-Home with a Heat Pump: Is the Technology Ready and Which EV Should I Buy?
Absolutely. We are going through another period when ou...
By Batpred , 9 minutes ago
-
I am frequently annoyed to see that my Growatt inverter...
By DavidAlgarve , 44 minutes ago
-
The recent hot spell has taken its’ toll on energy prod...
By Toodles , 1 hour ago
-
-
RE: How many people are happy with their ASHP and do you believe them?
@deltona When we list the kit we use, it is meant to...
By Batpred , 2 hours ago
-
RE: A2A vs A2W: Which Heat Pump Would You Pick?
Why do you think it impossible?
By Deltona , 4 hours ago
-
RE: Outdoor Battery Solutions?
Wow, that is quite an impressive setup! You would not h...
By Batpred , 6 hours ago
-
RE: Home energy storage & battery register
* 2 x Solax Power Triple Power 5.8kW Lithium-ion Batter...
By weoleyric , 8 hours ago
-
RE: Is Biomass Really Renewable?
Yes, it seems obvious they are not in it for the enviro...
By Batpred , 18 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
@jamespa maybe it wouldn’t damage the pipework but this...
By AdamK , 19 hours ago
-
@l8again Perfect, it happens and they need to be able t...
By ASHP-BOBBA , 22 hours ago
-
RE: What is the Heat Geek Guarantee?
I have to say I found the Heat Geek website very user-f...
By Batpred , 1 day ago
-
RE: Solar Produced vs Home Consumed
Whatever you say, the amount you will be charged for po...
By txmartyn , 1 day ago
