Lochinvar L100268104 Lp Conversion Kit Knight Kh 085

Product Description

The LOCHINVAR L100268104 is a liquid propane conversion kit designed to convert compatible fire tube boilers from natural gas operation to LP fuel service. The kit includes a 20 mm venturi along with a 2.45 mm bottom orifice and a 2.55 mm top orifice, supplying the precise fuel-air mixture geometry required for safe and efficient LP combustion. This is an OEM-specified replacement kit intended for installation by a licensed HVAC technician or gas service professional familiar with hydronic heating systems and gas appliance conversion procedures.

This conversion kit is engineered for use with the Knight KH 085 fire tube boiler, a residential and light commercial condensing hydronic boiler platform. LP conversion is commonly required when a jobsite lacks natural gas infrastructure and the heating system must run on stored propane. The kit addresses the orifice sizing and venturi geometry differences between natural gas and LP to maintain proper combustion across the boiler firing range.

Key Features

• 20 mm venturi for correct LP fuel-air mixing geometry
• 2.45 mm bottom orifice sized for liquid propane fuel delivery
• 2.55 mm top orifice sized for liquid propane fuel delivery
• OEM-specified kit for Knight KH 085 fire tube boilers
• Supports full LP conversion from factory natural gas configuration

Compatibility

Designed for use with Knight KH 085 Fire Tube Boilers as specified by the manufacturer.

Installation Notes

LP conversion must be performed by a licensed gas technician in accordance with local codes and the manufacturer service documentation. Shut off all gas supply and allow the appliance to cool completely before accessing internal combustion components. After conversion, verify proper combustion and leak-test all gas connections before returning the boiler to service. Update the appliance fuel label per applicable codes after conversion is complete.

Technical Specifications

• Fuel Type: Liquid Propane (LP)
• Venturi Size: 20 mm
• Bottom Orifice: 2.45 mm
• Top Orifice: 2.55 mm
• Application: Knight KH 085 Fire Tube Boilers

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: L100268104