Mechanical Reaming

Mechanical Reaming is a process of cleaning tarring from a chimney using a cable with chains connected which are then rotated at high speed within the chimney to remove the tarring build up.

Mechanical reaming of a chimney can only take place in a brick, clay lined, concrete lined or cast chimney lining. Flexible metal linings can not be reamed as the process would damage to flue lining. Reaming is a process of cleaning tarring from a chimney using a cable with chains connected which are then rotated at high speed within the chimney to remove the tarring build up.

As tar is flammable it is a common cause of chimney fire and dependant on the amount of tar can take a long time to burn through and will require the attendance of the fire brigade.


Tarring of chimneys is most commonly caused by:

Burning of wet or unseasoned wood.
Burning wood too cool for prolonged periods leaving the stove idling.
Burning of off cuts of sawn pine or wooden furniture.
Burning of conifer or other pine family logs not fully seasoned.
Burning of pallets as fuel.

Reaming

Flues can occasionally become covered with tar. This builds up until eventually it becomes an exhaust restriction, or even worse, a fire hazard. At A1 Thermoline we have the means to remove this build up with a custom built reaming machine.This requires a section of special revolving chains that are lowered down the chimney. Revolving at relatively high speeds, they remove the tar and creosote from the flue wall. A high power vacuum removes all residues. Clay liners and other forms of lining can also be removed. However, depending on the type of liner and its durability, each problem has to be dealt with separately.