Last seen: Jun 18, 2025
@jwilliams89 Likely under ECO4 the installers will fit the Grant Chofu controller, which comes as standard with the Aerona. The smart controller hasn'...
Done @editor, please confirm receipt. Average 46dB(A) SPL @ 3.5m for Grant Aerona3 10kW
Highly likely a Grant scheme installed under ECO4 will have a LLH and secondary circulating pump. They are not the most efficient system installation,...
Hi, some info on Grant website on user level parameter adjustment. Not had a look in detail, Grant are slowing realising that the installer manual is ...
@roamingbull hi there, as a comparison, I have around 155m2 of heated space, and the 10kW Aerona. I was hitting 50kWh per day last weekend in the exce...
WC works completely autonomously, it doesn't reference room temperature. Parameter 21 05 is the maximum outdoor air temperature at which, with WC enab...
In theory, yes. You may need to adjust the WC parameters, or the flow rate to certain emitters to fine tune it. Every house and heating system is diff...
[/quote] Hi again, if Weather Compensation [WC] works right then your heating will regulate based on that. Hive thermostats cycle the ASHP on and off...
Same here @Marvinator80. I have max LWT (in my case 45degC) set to 0degC. To be fair below 0degC I don't reach max LWT, due to continual defrost cycle...
Hello and welcome. The Grant Aerona units are known to spend a lot of time in defrost in winter conditions, usually every 45-60 minutes. That does see...
@mike-patrick I called Grant HQ. They arranged for Olly the local service engineer to attend. Pricey service of the ASHP and system cylinder at £250. ...
The Grant units seem particularly keen to defrost around every 45 minutes when there's high relative humidity and the evaporator refrigerant temperatu...
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