HTS Eclipse – Winnox Low-NOx Air Heating Burner

Overview

The Honeywell Winnox® is a nozzle-mix, low-emissions air-heating burner designed to comply with global emissions mandates for low NOx operation. The modular design incorporates direct-spark ignition, an integral air/gas ratio regulator, and an integral packaged combustion air blower, delivering efficient firing across a wide gas turndown range at a controlled air-to-fuel ratio. Models range from WX0050 to WX0850, covering heat capacities from 550 kBTU/h to 12,500 kBTU/h (HHV).

The Winnox burner nozzle produces intense air/fuel mixing, resulting in a short, swirled flame completely contained within the firing tube. This combustion principle yields extremely low NOx emissions while maintaining stable operation up to 1,800°F (982°C) process temperature. Packaged with a combustion air blower at 50 Hz or 60 Hz, the Winnox is ready for global installation with minimal site work.

Features & Benefits

• Low NOx nozzle-mix design — intense air/fuel mixing produces a short, swirled flame fully contained in the firing tube for extremely low emissions
• Multi-fuel capability — operates on natural gas, propane, and butane without major modifications
• Integral ratio regulator — butterfly valve and ratio-regulator design provides simple, accurate air/gas ratio control with 40–70% excess air at high fire
• 8:1 turndown ratio — wide firing range supports precise temperature control across variable load conditions
• Packaged with integral combustion air blower — available at 50 Hz or 60 Hz for global applications, simplifying installation
• Modular design — wide range of options and configurations including NPT or BSP inlet pipe threads and alloy or refractory combustor tube selections
• Direct-spark ignition — factory-mounted flame rod with low fire start only; UV scanner available as an option
• Multiple mounting orientations — vertical down, vertical up, or horizontal to suit equipment layout

Technical Specifications

• Burner type: Nozzle-mix, low-emissions air-heating burner
• Models: WX0050 to WX0850
• Heat capacity range: 550 kBTU/h to 12,500 kBTU/h (HHV)
• Minimum input: As low as 75 kBTU/h (model-dependent, on-ratio firing)
• Turndown ratio: 8:1
• Process temperature range: Up to 1,800°F (982°C)
• Air/gas ratio control: Ratio regulator with impulse line; 40–70% excess air at high fire
• Combustion air supply: Integral packaged blower (standard) or remote blower option
• Combustion air requirements: Fresh (20.9% O₂), clean, temperature ≤ 250°F
• Ignition type: Direct spark ignition, low fire start only
• Ignition transformer: 6,000–8,000 VAC, ≥ 0.02 A, full wave output
• Flame sensor: Flame rod (factory mounted); UV scanner (ordered separately)
• Control motor: ≤ 2 rpm, ≥ 25 in-lb torque, 90° stroke, modulating control
• Gas inlet: Controlled pressure to ratio regulator inlet required
• Combustor tube options: Low-temperature alloy tube or high-temperature alloy tube
• Pipe connections: NPT or BSP threaded
• Burner orientation: Vertical down, vertical up, or horizontal
• Power supply options: 50 Hz or 60 Hz (model-dependent)
• Approvals: Complies with Eurasian Customs Union technical specifications

Applications

• Indirect air heating systems
• Industrial ovens and dryers
• Paint cure ovens
• Powder coating ovens
• Food processing ovens and dryers
• Dairy and agricultural drying applications
• Textile and paper drying
• General industrial process heating requiring low NOx compliance

Models / Configurations

• WX0050 – Smallest model in the Winnox series; suited for low-capacity air heating applications
• WX0100 – Available with low-temperature alloy tube and refractory plug combustor configuration
• WX0200 – Mid-range capacity model; low-temperature alloy tube with refractory plug option
• WX0300 – Available in high-temperature or low-temperature alloy tube with refractory plug
• WX0400 – Available in high-temperature or low-temperature alloy tube configurations
• WX0500 – Higher-capacity model; high-temperature alloy tube option available
• WX0850 – Largest standard model; available in short, standard high-temperature, and low-temperature alloy tube configurations with refractory plug
• NPT or BSP pipe thread inlet options available across the model range
• 50 Hz or 60 Hz blower configurations available for global application

Winnox Accessories

• UV Flame Scanner – Optional flame detection device for UV-based flame supervision; ordered separately from the base burner assembly
• Remote Combustion Air Blower – Alternative to the integral packaged blower for installations where remote air supply is required
• Refractory Plug Combustor – High-temperature combustor option for elevated process temperature applications

Documentation