I have a Potterton Gold HE 33kw combi boiler. It has the standard timer on it but I wish to change to a 7 day timer as I work shifts and sometimes the heating comes on when it doesn’t have to.
The guy that fitted the boiler said it’s simple to fit as it’s just two wires to connect.
Are they all much the same or should I go for a certain type?
Would a timer for a Gravity Fed Systems do the same job or is the timer for a combi system different?