The rugged Heyco-style design allows for a snap-in installation

ensuring a secure

By absorbing the mechanical forces of pull

Proper orifice sizing is critical for achieving optimal combustion efficiency and preventing hazardous carbon monoxide buildup or burner soot

What is the best way to install a new strain relief bushing

Weil McLain 560-528-989 Orifice The rugged Heyco-style design allowsThe Weil McLain 560 528 989 Burner Orifice is a precision engineered OEM replacement part designed specifically for natural gas boiler manifold assemblies. As a veteran grade HVAC orifice, it features a #46 drill size essential for maintaining the correct gas flow rate and BTU input across the burner rack. This 7 16" hex component is built with a 1 8" NPT thread, ensuring a secure, leak free seat within the gas manifold of various Weil McLain CGi and