Lennox 27U16 – also known as Lennox 108011-02 – is a reliable crankcase heater designed for residential and light commercial HVAC systems. Built to protect compressors with a 5.6 to 6.3 inch diameter, this heater prevents refrigerant migration and oil dilution during cold-weather operation, helping extend equipment life and improve start-up performance. Ideal for Lennox heat pumps and air conditioners, it maintains proper crankcase temperature, reduces wear, and supports consistent system efficiency.

Key Features:
• OEM Lennox 27U16 / 108011-02 replacement part
• Fits 5.6" to 6.3" diameter compressors
• Helps prevent refrigerant migration and oil foaming
• Protects against cold-start compressor damage
• Supports reliable year-round HVAC performance
• Durable construction for long service life

Specifications:

Perfect for service technicians, maintenance teams, and homeowners looking for an exact-fit Lennox replacement to ensure optimal compressor protection.