Brendan_w

Thanks everyone for their contributions. I have a well insulated house and also a varying tariff. Even gauranteeing that I could move my Domestic Hot Water to off-peak; high external temperature times could offer significant savings. I agree with folks that using a Homely would be ideal as this is well established. Has anyone installed a Homely to a Chofu heat pump? Alternatively if anyone has tried this and a Homely is not viable; I'd be quite happy to try and go the modbus route.

Hi Everyone, Has anyone any experience of adding a smarter controller e.g. Homely or Rasberry PI to enable advanced weather compensation to a heat pump to an existing system with a linear Weather Compensation curve? Any advice would be much appreciated. In particular I'm interested in how you handled controlling multi-zones? Also has anyone had success writing updated output weather temperatures on the modbus of a Grant/Chofu heat pump? I see this website successfully reads data from the heat pump. https://github.com/aerona-chofu-ashp/modbus/blob/main/input-register-readonly.tsv Many thanks, Brendan

Hello, I see there's already a very active community here and looking forward to participating as I go on my journey of making my house a bit smarter.