Lennox 19K27 Conversion Kit

The Lennox 19K27 LP Conversion Kit, assembly number 617168-13, is an OEM natural-gas-to-LP/propane conversion kit designed for specific Lennox commercial unit heaters.

The kit is designed for compatible UHCM, LF25, UHSC, and LS25 unit heaters in 250, 300, 350, and 400 MBH capacities equipped with the applicable White-Rodgers 36H-series gas valve. It includes the components required to convert compatible equipment from natural gas to regulated LP/propane operation.

The kit includes 16 burner orifices measuring 0.0571 inch (1.45 mm), gas-valve conversion components, and conversion identification labels. Lennox specifies this kit for installations from 0–3,000 ft elevation in the United States and 0–4,500 ft in Canada.

Always verify the complete equipment model, serial number, gas-valve configuration, and installation elevation before ordering.

Key Benefits

• Genuine Lennox LP conversion kit
• Lennox catalog number 19K27
• Assembly number 617168-13
• Converts compatible equipment from natural gas to LP/propane
• Includes 16 burner orifices
• 0.0571" (1.45 mm) orifice size
• Includes applicable gas-valve conversion components
• Designed for compatible 250–400 MBH Lennox unit heaters
• Supports specified UHCM, LF25, UHSC, and LS25 applications

Common Questions

What is Lennox 19K27 used for?
It is used to convert specified Lennox commercial unit heaters from natural gas to regulated LP/propane.

Which heater sizes are compatible with 19K27?
The kit is specified for compatible 250, 300, 350, and 400 MBH models within the applicable Lennox unit-heater families.

Can Lennox 19K27 be used at any altitude?
No. It is specified for installations from 0–3,000 ft in the United States and 0–4,500 ft in Canada. Different components or conversion kits may be required at higher elevations.

Does the equipment model need to be verified before ordering?
Yes. The complete model and serial number should be checked to confirm the correct LP conversion kit and gas-valve configuration.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.