Resideo Q345A1305 Igniter-Burner verifying the thermal limits is

verifying the thermal limits is step one

High-Durability Construction: Built to withstand the constant thermal cycling of a primary furnace limit

When diagnosing a non-functioning HVAC blower or a recurring limit switch trip code

This part is the scroll component only

Key Benefits Universal Compatibility: Specifically sized for 3/16" connections across major commercial brands like Vulcan

Resideo Q345A1305 Igniter-Burner verifying the thermal limits isThe Resideo Q345A1305 Igniter Burner is a critical replacement component designed for intermittent pilot ignition systems in high efficiency natural gas furnaces and boilers. This non primary aerated combination pilot burner and igniter features a single tip style with a front facing orientation, ensuring precise flame rectification and consistent main burner ignition. Engineered with a BCR 18 0. 018" orifice and a 1 4" compression fitting, this unit