We strongly advise you have your chimney or flue swept prior to any installation. It is a legal requirement to have a flue or chimney swept if you are changing from a solid fuel fire to a gas fire. If there is no cowl on the chimney pot/flue it needs to be checked for blockages prior to installation. We offer a full Chimney sweep service, please contact us for prices.  A log burner or multifuel stove should have the flue swept annually, preferably during the summer or at the beginning of the heating season. For stoves that are used frequently or where smokeless fuel is predominantly used we recommend twice during the heating season.