HTS Krom Schroder Direct Fired Furnace Burners – Menox / BIC..M

Overview

The Honeywell Thermal Solutions Menox / BIC..M is a low-NOx direct-fired gas burner designed for high-temperature industrial furnace applications. Featuring a cast steel housing with a silicon carbide ceramic tube connection, the BIC..M series operates in both standard flame mode and menox® flameless combustion mode, enabling significant NOx reduction when furnace temperatures reach 850°C (1562°F) or higher.

Available in burner sizes 50 to 140 with capacity ranging from 35 to 420 kW, the BIC..M series accepts natural gas as the primary fuel and supports preheated combustion air up to 450°C (842°F) in menox mode. The series is engineered for roller hearth, heat-treatment, and continuous industrial furnaces operating at furnace temperatures up to 1250°C (2282°F).

Features & Benefits

• menox® Flameless Combustion – Flameless combustion mode activates at furnace temperatures ≥850°C (1562°F), enlarging the reaction zone and reducing peak temperatures to achieve low-NOx operation.
• Wide Capacity Range – Delivers 35 to 360 kW (132 to 1360 kBTU/h) in flame mode and 40 to 420 kW (152 to 1588 kBTU/h) in menox mode, accommodating diverse furnace load requirements.
• Preheated Air Capability – Supports combustion air preheat up to 500°C (932°F) in standard flame mode and up to 450°C (842°F) in menox mode, improving thermal efficiency.
• High Flame Velocity – Flame velocities up to 186 m/s (610 ft/s) promote effective furnace atmosphere circulation and temperature uniformity.
• SiC Ceramic Tube – Silicon carbide ceramic tube connection provides thermal and mechanical durability in demanding furnace environments.
• Nozzle-Mixing Design – Gas and combustion air mix only at the burner head, reducing the risk of flashback and improving operational safety.
• Flexible Flame Supervision – Flame rod is standard; UV sensor available as an option to suit varying system control requirements.
• Insulated Housing Option (BICW..M) – Steel body variant with internal ceramic-fibre insulation available for installations requiring additional thermal isolation.
• Low-Noise Operation – Noise levels approximately 95 dBA in open air and ~75 dBA in furnace, with reduced noise in menox flameless mode.

Technical Specifications

• Burner Sizes: 50 to 140
• Capacity (Flame Mode): 35 to 360 kW (132 to 1360 kBTU/h)
• Capacity (Menox Mode): 40 to 420 kW (152 to 1588 kBTU/h)
• Maximum Furnace Temperature: 1250°C (2282°F)
• Menox Mode Activation Temperature: ≥850°C (1562°F) furnace temperature
• Maximum Air Preheat Temperature (Flame Mode): 500°C (932°F)
• Maximum Air Preheat Temperature (Menox Mode): 450°C (842°F)
• Burner Lengths: 300 to 1200 mm
• Visible Flame Length: 45 to 130 cm (17.7 to 51.2 in), depending on size
• Flame Velocity: Up to 186 m/s (610 ft/s)
• Noise Level: ~95 dBA open air; ~75 dBA in furnace; reduced in menox mode
• Combustion Type: Nozzle-mixing; flameless in menox mode
• Ignition Type: Direct spark ignition
• Flame Supervision: Flame rod (standard); UV sensor (optional)
• Turndown Control: On/Off staged control only
• Fuel Type: Natural gas (standard); propane/butane on request
• Connections: Threaded connections for fuel and air
• Housing Material (BIC..M): Grey cast iron
• Housing Material (BICW..M): Steel with internal ceramic-fibre insulation
• Ceramic Tube Material: Silicon-infiltrated silicon carbide (SiC)
• Maintenance Interval: Twice per year (more frequent if combustion media is contaminated)
• Approvals / Compliance: Machinery Directive 2006/42/EC (Declaration of Incorporation), EN 746-2, Eurasian Customs Union, European Patent EP 2 442 026 B1, REACH Regulation (BICW..M)

Applications

• Industrial furnaces in the iron and steel industry
• Precious metal, non-ferrous metal, and light-metal processing furnaces
• Heat-treatment furnaces
• Roller hearth furnaces
• Continuous furnace applications requiring low-NOx combustion at high operating temperatures

Models / Configurations

• BIC..M – Standard configuration with grey cast iron housing and SiC ceramic tube connection; designed for cold air and preheated air up to 500°C in flame mode and up to 450°C in menox flameless mode.
• BICW..M – Steel body variant with internal ceramic-fibre insulation for installations requiring additional thermal isolation; subject to REACH Regulation (contains RCF/ASW insulation).

Menox / BIC..M Accessories

Consult the BIC..M Technical Information document and the Honeywell Thermal Solutions product configurator (ProFi) for compatible accessories, ignition equipment, and flame supervision components.

• UV Sensor – Optional flame supervision sensor in place of standard flame rod, for applications requiring UV-based flame detection.
• Internal Insulation Housing – Available as a factory-configured option (BICW..M) for installations requiring a thermally insulated burner body.

Documentation