Lochinvar – FTXL™ Fire Tube Gas Boilers

Commercial Boilers

FTXL™ FIRE TUBE BOILERS

The FTXL boiler is the new 98% efficiency standard in fire tube technology, and it puts remote connectivity at your fingertips. The FTXL boiler also has a compact footprint of just 6.2 sq. ft.

  • Up to 10:1 Turndown Ratio
Model NumberInput MBH MinInput MBH MaxThermal EfficiencyOutput MBHNet AHRI Rating MBHTurndownFlow (GPM) MinFlow (GPM) MaxHEX Water Volume (GAL)ABCDWater Conn.Vent SizeAir InletGas Conn.Ship. Wt.
FTX400(N,L)40399.998.00%39234110:1101051330-1/2″27-1/2″10-1/4″17″2″4″4″1″478
FTX500(N,L)5050097.70%48942510:1151051230-1/2″27-1/2″10-1/4″17″2″4″4″1″504
FTX600(N,L)8560097.50%5855097:1151051230-1/2″27-1/2″10-1/4″17″2″4″4″1″504
FTX725(N,L)103.572597.20%7056137:1201501733″28-1/2″10-1/2″17-1/2″2-1/2″6″4″1″575
FTX850(N,L)121.585097.00%8257177:1251501633″28-1/2″10-1/2″17-1/2″2-1/2″6″4″1″604