Mill-rose 83035 Single Spiral Flue Brush 2.25 in

Product Description

The MILL-ROSE 83035 is a single spiral wire brush designed for cleaning 2.5-inch flue passages in boilers and heating systems. Built from black oil-tempered wire, it delivers firm, consistent scrubbing action to remove soot, scale, and deposits from flue tubes and boiler passages. The brush measures 8 inches in total length with a 4.5-inch brush section, giving technicians controlled reach into standard flue openings. Part of the 8300 Series single spiral construction, it is sized to fit snugly against the interior wall of a 2.5-inch flue for effective contact. HVAC service techs and boiler mechanics rely on this brush for routine combustion-side cleaning during maintenance and tune-up work.

This brush is intended for use on residential and light commercial boiler flue tubes, heat exchanger passages, and similar 2.5-inch diameter flue or tube openings. It is commonly used during annual boiler maintenance to clean fire-side deposits that reduce heat transfer efficiency. The 8300 Series single spiral design is suited for straight tube cleaning where consistent wall contact is the priority. Technicians working on scotch marine boilers, fire-tube boilers, or flue-pipe sections will find this size appropriate for 2.5-inch passage work.

Key Features

• Black oil-tempered wire construction for durability and consistent stiffness
• Single spiral 8300 Series design for firm wall contact in straight flue tubes
• Sized to clean 2.5-inch inside diameter flue or boiler tube passages
• 8-inch total length with 4.5-inch active brush section
• Removes soot, scale, and combustion deposits from heat exchanger surfaces

Compatibility

Designed as an OEM-style replacement and service brush for 2.5-inch flue tubes and boiler passage openings in residential and light commercial heating equipment.

Installation Notes

Shut down the boiler and allow all surfaces to cool completely before beginning flue or tube cleaning. This brush is installed and used by licensed HVAC technicians or boiler mechanics as part of routine combustion-side maintenance. Insert the brush into the flue tube opening and work it back and forth to dislodge deposits; use appropriate extension rods if the tube depth requires additional reach. Follow local codes and the equipment manufacturer's maintenance procedures when servicing flue passages.

Technical Specifications

• Brush Diameter: 2.25 inches
• Flue Size (Nominal): 2.5 inches
• Total Length: 8 inches
• Brush Length: 4.5 inches
• Wire Type: Black oil-tempered wire
• Construction: Single spiral (8300 Series)

Standard Information

• Brand: MILL-ROSE
• Manufacturer Part Number: 83035