Disclaimer: Smart Controls are more efficient than most controls when used correctly. However if you leave your controls off and only switch on the heating and hot water as and when needed then switch it off again you may not notice as much of a saving or any saving at all. Also combination boilers only supply on-demand hot water and do not benefit from hot water controls, theough they can use Smart heating controls.

Please also note: Most boiler controls can be updated to a Smart Control system. However some are incompatible such as Ariston's Evo system, the Smart Fit low voltage system (Smart Fit can be changed but requires additional components) and some manufacturer's own systems.