Weil McLain 510-811-605 Natural to Propane Conversion Kit for Boiler - GV-4

The Weil McLain 510-811-605 is an OEM Natural Gas to Liquid Propane (LP) Conversion Kit designed specifically for the GV-4 series gas-fired boiler. This genuine Weil McLain part allows a qualified technician to convert a GV-4 boiler from natural gas operation to liquid propane (LP/propane) fuel, providing fuel-source flexibility without replacing the entire heating unit.

Key Features:

• Converts GV-4 boiler operation from natural gas (NG) to liquid propane (LP)
• Genuine OEM Weil McLain replacement part
• Includes propane orifice plate and conversion label
• Compatible with GV-4 Series 1 and Series 2 boilers
• Designed to maintain optimal burner performance and efficiency after conversion

Installation Requirements:

• Must be installed by a qualified installer or licensed service technician
• Installation must comply with all applicable local codes and the authority having jurisdiction
• Do not tamper with or modify orifice size — doing so may result in severe personal injury, death, or property damage
• Do not leave any uninstalled orifice plates in the building after installation
• Gas inlet pressure should be verified (min. 4" W.C., max. 13" W.C.) during installation

Related Conversion Kits by Boiler Model:

• GV-3: 510-811-600
• GV-4: 510-811-605 (this kit)
• GV-5: 510-811-610
• GV-6: 510-811-615

This kit is part of Weil McLain's discontinued GV series service parts catalog. Ensure you select the correct kit for your specific boiler model before ordering. The qualified agency performing the conversion assumes full responsibility for the installation.