I have a Baxi Combi Instant 80HE which is controlled via TRV's (6 radiators) on all radiators and a 24hr mech timeclock located in the boiler itself.
My understanding is i could save money by installing a programmable room stat? I have been looking online at various models that have optimisers and other smart features (wifi).
I am quite prepared to spend £100 or more to get the best technology for my system?
Suggestions on what controller to choose would be appreciated, also any other ideas/options for my heating system that will help with energy use?