Setting a mechanical boiler timer
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.
To set a mechanical boiler timer, follow these steps:
1. Make sure the dial arrow is pointed to the current time
As we progress through the seasons, hours move forward and backwards. One design flaw of mechanical boiler timers is that they do not always update automatically in line with the hours changing, resulting in the central heating system turning on too early or too late. Ensure that the dial arrow is pointing to the correct time.
2. Push the pins in at the times you want the boiler to turn on
When pushed in, the pins around the side of the dial turn the boiler on during that time. Push the pins in at the time you want your central heating to come on. For example, you may want to have a warm home between 7:00am-8:00am. If so, push the six pins in between 6:30am and 8:00am. Set the timer to switch the heating on around 30 minutes before your desired time of a warm home, allowing your heating time to sufficiently circulate around each room.
3. Set the mechanical timer to timer mode
There is a switch on mechanical boiler timers that you can turn on or off. This switch will usually be labelled ‘Timer’ and it will make your boiler turn on at the times you have chosen. If this is turned off you will only have the option to turn your boiler on or off manually.