I have actually completed testing on these radiators as i have a new house an bought rointe radiators for every room in my new 3 bed because i couldn't get gas. I initially thought the cost was going to be very expensive but as it turns out its a actually quite cheap to run these though not as much as gas central heating probably because gas is a quarter of the cost per KW Hour.
The app is great too, I can control them from anywhere, even though my husband thinks its a great joke to turn them off when I am at home alone
