LF25 Unit Heater

Designed for Exceptional Performance

  • LF25 Unit Heater
Tonnage: 30,000 to 400,000 Btuh
Thermal Efficiency: Up To 83.8

Product Features


    • Designed for exceptional performance
    • Two-stage LF25 now available in 250-400 kBtuh!
    • Up to 83.8% thermal efficiency
    • 25% less pure tones and projections than leading competitors
    • Easy to install with compact units offering 180-degree installation capabilities
    • Hinged access doors
    • Dimpled tubular heat exchanger design
    • Additional advanced features include DSI board with 11 diagnostic codes and LED FDD capabilities
    • Residential heating capacities from 30,000 to 105,000 BTU/h
    • Commercial heating capacities from 30,000 to 400,000 BTU/h
    • Vertical units available with either aluminized or stainless steel heat exchangers


    • 180-degree installation position capability on compact models
    • Cage-nuts for all-thread installation on vertical units
    • Conveniently located gas connections
    • Removable terminal block for line voltage and thermostats
    • Hinged door allows easy access to all components
    • DSI control board has 11 error codes and remote LED fault detection diagnostics enabled
    • Each unit is factory wired and tested with complete cycles of startup and shutdown before being shipped
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