Many people are relying on their stoves and fires to keep their house warm rather than use the central heating. With prolonged use it is easy for the flue to fill more quickly and in doing so this effects the efficiency of your fire.
Frequency will depend on a number of factors which include the type of fuel used, appliance, duration of use, moisture content of wood fuel, and the type of chimney you have.
The sweeping frequencies below are for guidance purposes only:-
Smokeless fuel: At least once a year
Wood: Quarterly when in use
Bituminous coal: Quarterly when in use
Oil: Once a year
Gas: Once a year