FTXL Fire Tube Boiler

FTXL Fire Tube Boiler

Smart System™
CON·X·US® Remote Connect Capable
Cascading Sequencer
5 Inputs From 399,999 to 850,000 Btu/hr
Firing Rate Modulation Up to 10:1
Common Vent and PVC Direct-Venting
Small 6.2 Sq. Ft. footprint


For residential and light commercial applications, the FTXL™ adds models from 399,999 to 850,000 Btu/hr, and takes Lochinvar’s fire-tube technology to the next level. FTXL offers best-in-class AHRI Thermal Efficiency and footprints, plus remote connectivity that puts the SMART SYSTEM™ control at your fingertips, anywhere!

Additional information


Commercial Boiler

Boiler Type

Fire Tube