Most boilers come with a timer, which you can use to program your heating to switch on and off automatically at particular times of day.
A boiler timer, or boiler clock, allows you to control what time of day your heating and hot water turns on and off.
A mechanical boiler timer, also known as an analogue timer, is usually a round dial with a 24-hour clock in the middle.
There are pins around the outside of the dial, each one indicating a period of 15 minutes, and an adjustable arrow used to point to the current time of day.
If you have an older heating system, the timer might look like a small clock or dial on the front of your boiler. This is called a mechanical timer.
A boiler programmer allows you to set different times for heating and/or hot water.
What is the difference between timers and programmers?
A timer operates your heating system at the same times every day whereas a programmer allows different heating times for different days of the week to suit your lifestyle.
A room thermostat enables you to set the target temperature for a room. Room thermostats are usually best positioned in the hall or landing. They should be sited away from direct sunlight and clear of curtains and furniture.
Programmable room thermostats:
A programmable room thermostat enables you to set different room temperatures for different times of the day and night. When set up correctly, a programmable room thermostat prevents the system from having to heat the house from a 'cold start'. The control always maintains a temperature within the property and this ensures that the boiler is only ever 'topping up' the temperature in the home. As a guideline, target temperatures should be set at 21 C for comfort temperature and 15 C for economy temperature.