Square Wire Chimney Brushes
Use the following guide to select the proper
Chimney Brush for your chimney.
Measure the inner opening (both directions) of your fireplace or woodstove chimney.
For masonry chimneys you'll need to measure the inner opening dimensions in both directions. Buy a brush that is at least as big as your chimney liner otherwise it will not reach the side walls of your chimney and won't do an adequate job. If you buy a chimney brush that is too big then it will be harder to get down the chimney but will work unless excessively oversized.
Master Sweep Chimney Brushes sets the industry standard as the premier chimney brush. It withstands the demanding abuse encountered by busy commercial chimney sweeps. It has heavy duty double spiral .177 dia. spindle design with a plated double swaged 3/8" NPT connector. The 7" of fill is two on two high density oil tempered 22 gauge 0.0286 wire bristles, creating uniform rugged bristle distribution.
These chimney brushes require an extension rod with 3/8" pipe threads.