Schaefer Brush 35266 Square Chimney Brush 6 in Steel Wire

Product Description

The SCHAEFER BRUSH 35266 is a square chimney brush designed for cleaning flue liners, chimney tiles, and stovepipe sections. Built with tempered steel wire bristles, this brush delivers firm, aggressive scrubbing action to remove creosote buildup, soot, and debris from square flue passages. The 6 inch by 6 inch face size fits standard square flue tile openings. A 1/4 inch NPSM male threaded connection at the base accepts standard chimney rod extensions, allowing technicians to reach the full depth of a flue from a single access point. Weighing 1 pound, the brush is easy to handle during extended cleaning runs.

This brush is suited for residential and light commercial chimney maintenance. It is used in square masonry flues, prefabricated firebox inserts with square liner tiles, and wood-burning appliance venting systems. Chimney sweeps and HVAC service technicians use this brush as part of routine annual flue inspections and cleaning cycles. It works with standard flexible or rigid fiberglass rod systems that accept 1/4 inch NPSM threaded connections.

Key Features

• 6 inch by 6 inch square face fits standard square masonry flue tile openings
• Tempered steel wire bristles provide firm scrubbing action for creosote and soot removal
• 1/4 inch NPSM male connection is compatible with standard chimney cleaning rod systems
• Lightweight at 1 pound for easy single-technician operation
• Square profile maintains contact with all four sides of square flue liners

Compatibility

Designed as an OEM-style replacement and service brush for square flue chimney cleaning systems using 1/4 inch NPSM threaded rod connections.

Installation Notes

Chimney sweeps and HVAC technicians should inspect the flue for obstructions before inserting the brush. Thread the brush securely onto the rod system before use and verify the connection is tight to prevent separation inside the flue. Always work from the top down when possible, and ensure the fireplace or appliance damper is closed or sealed at the base to contain loosened debris. Follow NFPA 211 guidelines for chimney inspection and cleaning procedures.