I have a Honeywell T4R thermostat which I bought last year as a replacement for my long-serving CM927. It's working fine but I haven't tried the optimum start / stop or the delayed start options. Has anyone tried these and are they effective?
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local