What to Look for in Flue Brushes: The Key Factors

A man cleaning the chimneyChimneys are the hottest trends for new homes. The flues of chimneys, however, get dirty and have a buildup of soot and creosote. Cleaning the duct is hence an essential part of your chimney and indoor air maintenance.

Scrubbing off creosote also enhances your property’s safety since it is highly flammable and might cause chimney fires. A flue cleaning brush is an essential tool you will use for this vital task. Here is a guide to choose the right flue cleaning brush.


The material you select for your flue brush is determined by your chimney type. A traditional masonry chimney is ideally cleaned using a metal brush which efficiently scrubs off soot buildup. Poly brushes are suitable for metal or liner-coated and pre-fabricated chimneys. You should choose prefab poly brushes if your chimney has many bends since these are less rigid compared to regular ones.


Chimneys have evolved over the years, but your flue brush shape should match your chimney’s shape. You can choose from oval, circular, square and rectangular brushes depending on your chimney’s shape. It would be ideal if their shapes match.


Typical flue cleaning brushes come in sizes of 5 to 12 inches though some manufacturers have custom-made brushes. The ideal brush should not be more than 0.5 inches wider than the diameter of your flue for efficient cleaning. After finding a perfect size, you should shop for a rod to help you clean the entire length of your chimney. These are available in various sizes up to five feet and can be stiff or bendable depending on your chimney.

You can also get a large and small hand brush when buying the flue cleaning brush. The small brush will help you clean the corners of your flue while the large one is ideal for sweeping your firebox. With the right flue cleaning brush and accessories, you are assured of a thoroughly clean chimney whatever the season.