Schaefer Brush 36507 Chimney Brush 7 in Square Steel Wire

Product Description

The SCHAEFER BRUSH 36507 is a square chimney brush designed for cleaning flue liners, fireplace flues, and chimney passages. Built with tempered steel wire bristles, it provides aggressive scrubbing action to remove creosote, soot, and debris from masonry and tile flue interiors. The 7-inch by 7-inch square profile is sized to match standard square flue liner openings. It connects via a 1/4-inch NPSM male fitting, making it compatible with standard chimney brush extension rod systems. This brush is a standard tool for chimney sweeps, HVAC technicians, and fireplace service professionals performing routine flue maintenance and inspection prep.

This brush is suited for residential and light commercial chimney cleaning applications where square flue liners are present. It is used during annual chimney inspections and cleaning services required by NFPA 211 and local fire codes. The square profile ensures consistent bristle contact along all four walls of a square or rectangular liner. It is typically run from the top of the flue downward or from the firebox upward using threaded extension rods sold separately.

Key Features

• 7-inch by 7-inch square brush profile sized for standard square flue liner openings
• Tempered steel wire bristles deliver firm scrubbing action for creosote and soot removal
• 1/4-inch NPSM male connection threads onto standard chimney brush extension rods
• Weighs 1.7 pounds for solid construction without excessive handling fatigue

Compatibility

Designed as an OEM-style replacement or standard service brush for use with 7-inch square flue liner openings and threaded chimney brush extension rod systems accepting a 1/4-inch NPSM male connection.

Installation Notes

Installation of this brush is performed by chimney sweeps or HVAC professionals servicing gas, wood, or oil appliance flues. Before cleaning, close all fireplace dampers and cover the firebox opening to contain debris. Thread the brush onto compatible extension rods using the 1/4-inch NPSM male fitting and work the brush through the full length of the flue liner in controlled strokes. Follow NFPA 211 guidelines and local fire codes for recommended cleaning intervals and inspection procedures.