Schaefer Brush 76236 Boiler Furnace Fiber Brush 3 in

Product Description

The SCHAEFER BRUSH 76236 is a fiber boiler and furnace brush designed for cleaning flue passages, heat exchanger tubes, and combustion chamber walls in boiler and furnace systems. The brush head measures 3 inches in diameter with a 6-inch bristle length, providing thorough contact with tube walls and passage surfaces. A standard wood handle extends the overall assembly to 42 inches, giving technicians the reach needed to clean deep flue passages without additional extensions. HVAC and boiler service professionals rely on this type of brush for routine maintenance cleaning on gas, oil, and solid-fuel appliances.

This brush is suited for residential and light commercial boiler and furnace maintenance. It is used during scheduled service calls to clear soot, scale, and combustion deposits from heat exchanger tubes and flue passages. The 42-inch overall length makes it practical for vertical or horizontal tube access on cast-iron and steel boilers as well as forced-air furnace heat exchangers. One bristle spiral provides consistent, even scrubbing action around the full interior circumference of the tube or passage being cleaned.

Key Features

• 3-inch brush diameter for standard boiler tube and flue passage sizes
• 6-inch bristle length for deep, thorough contact along tube walls
• Fiber bristle material resists moisture and handles soot and scale deposits
• 42-inch overall length with standard wood handle for extended reach
• Single-spiral bristle construction delivers consistent 360-degree scrubbing action
• Sold individually — one brush per package

Compatibility

Designed as an OEM-style replacement and standard-service brush for boiler and furnace flue tube cleaning applications requiring a 3-inch diameter brush head.

Installation Notes

Boiler and furnace cleaning brushes are installed and used by licensed HVAC technicians and boiler service professionals. Always shut down the appliance and allow all surfaces to cool completely before beginning any cleaning procedure. Verify the flue and heat exchanger passages are free of pressurized gas or combustion byproducts before inserting the brush. Follow applicable local codes and the appliance manufacturer service procedures when performing maintenance on boilers and furnaces.