Lochinvar – FTXL™ Fire Tube Gas 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.
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5 Models from 399,999 to 850,000 Btu/hr
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Up to 98% Thermal Efficiency
- Up to 10:1 Turndown Ratio
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Flow Rates from 10 to 150 gpm
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Features SMART SYSTEM™ Operating Control and CON•X•US® Remote Connect Capable
| Model Number | Input MBH Min | Input MBH Max | Thermal Efficiency | Output MBH | Net AHRI Rating MBH | Turndown | Flow (GPM) Min | Flow (GPM) Max | HEX Water Volume (GAL) | A | B | C | D | Water Conn. | Vent Size | Air Inlet | Gas Conn. | Ship. Wt. |
| FTX400(N,L) | 40 | 399.9 | 98.00% | 392 | 341 | 10:1 | 10 | 105 | 13 | 30-1/2″ | 27-1/2″ | 10-1/4″ | 17″ | 2″ | 4″ | 4″ | 1″ | 478 |
| FTX500(N,L) | 50 | 500 | 97.70% | 489 | 425 | 10:1 | 15 | 105 | 12 | 30-1/2″ | 27-1/2″ | 10-1/4″ | 17″ | 2″ | 4″ | 4″ | 1″ | 504 |
| FTX600(N,L) | 85 | 600 | 97.50% | 585 | 509 | 7:1 | 15 | 105 | 12 | 30-1/2″ | 27-1/2″ | 10-1/4″ | 17″ | 2″ | 4″ | 4″ | 1″ | 504 |
| FTX725(N,L) | 103.5 | 725 | 97.20% | 705 | 613 | 7:1 | 20 | 150 | 17 | 33″ | 28-1/2″ | 10-1/2″ | 17-1/2″ | 2-1/2″ | 6″ | 4″ | 1″ | 575 |
| FTX850(N,L) | 121.5 | 850 | 97.00% | 825 | 717 | 7:1 | 25 | 150 | 16 | 33″ | 28-1/2″ | 10-1/2″ | 17-1/2″ | 2-1/2″ | 6″ | 4″ | 1″ | 604 |
