Testing Chimney Flues

02 how to test the safety and efficiency of flues and chimneys technical guidance for installers and trade www labc co uk introduction this guide is intended to advise installers on the practices and procedures that must be followed in the commissioning and testing of flues and chimney systems serving solid fuel appliances.

Testing chimney flues.

This will force the smoke generated by the pellet to escape through gaps in the joints in a masonry chimney or connections between pre fabricated metal chimneys and flue pipes. Article index to heating systems. Article index to chimneys flues. A chimney leakage test also known as a chimney smoke test 1 is used to check that the flue will be safe and not leak potentially dangerous gasses into rooms above or an adjacent property.

To conduct a smoke test we introduce smoke into a hot flue and test that all the smoke is safely and effectively removed from the test point out into the. Flue testing for systems that are expected to operate under a positive pressure for example c h p flues and generator exhausts a second test the leak rate test should also be carried out. A smoke test 1 involves lighting an appropriate number of smoke pellets into the fireplace. Closing the bottom and top of the chimney during the test will generate a positive pressure in the flue.

All of our flue products are factory tested to ensure they are suitable for the pressure rating of the appliances we fit our systems on.