Hi all
I have a grant aerona3 6 kw heat pump and already have a mid electric meter and a sontex 449 heat meter. What else do I need to purchase to be able to monitor the cop of my pump please.
Hi all
I have a grant aerona3 6 kw heat pump and already have a mid electric meter and a sontex 449 heat meter. What else do I need to purchase to be able to monitor the cop of my pump please.