Lochinvar FTX850
The Lochinvar FTX850 is a Up to 98% thermal commercial boiler with a 850,000 BTU/hr BTU output, part of the Lochinvar FTXL Fire Tube (Commercial) line. GasBoilers.ca installs, repairs, and maintains the FTX850 across Greater Vancouver — Red Seal–certified, TSBC-licensed, same-day repair available. Call 604-359-1081.
Lochinvar FTX850 overview
The FTXL is Lochinvar's light-commercial fire-tube condensing boiler, reaching up to 98% thermal efficiency in a compact floor-mount footprint. It supports flow rates from 10 to 150 GPM with SMART SYSTEM controls and CON·X·US remote connectivity.
Up to 98% thermal
Efficiency
850,000 BTU/hr
BTU Output
Up to 10 years
Warranty
FTX850 specifications
| Model | Lochinvar FTX850 |
| Series | FTXL Fire Tube (Commercial) |
| Type | commercial |
| BTU Output | 850,000 BTU/hr |
| Efficiency | Up to 98% thermal |
| Warranty | Up to 10 years |
| Origin | United States |
| Best for | Large commercial loads |
FTXL Fire Tube (Commercial) features
Lochinvar FTX850 services we provide
All work by licensed BC gas-fitters — TSBC-certified.
FTX850 Installation
Permit, sizing, venting, gas, commissioning.
From $12,000
FTX850 Repair
Error code diagnosis, parts, full repair.
From $289
FTX850 Maintenance
Annual tune-up — required for warranty.
From $259
FTX850 Replacement
Upgrade an older unit. Rebate-eligible.
From $12,000
Emergency Service
Same-day no-heat, leak, CO, gas-smell response.
Call 604-359-1081
Warranty Service
Authorized warranty repairs for Lochinvar.
Warranty-covered
Lochinvar FTX850 — frequently asked questions
How much does Lochinvar FTX850 installation cost in Vancouver?
Lochinvar FTX850 installation starts from $12,000 in Greater Vancouver, including permit, code-compliant venting and gas piping, removal of the old unit, and full commissioning. Final pricing depends on your existing system and a heat-loss calculation. Call 604-359-1081 for a free quote.
What size is the Lochinvar FTX850?
The Lochinvar FTX850 has a heating output of 850,000 BTU/hr BTU, with Up to 98% thermal efficiency. It is best suited to large commercial loads.
Do you repair the Lochinvar FTX850?
Yes. We diagnose and repair the Lochinvar FTX850 — error codes, ignition faults, no-heat, leaks, low pressure, and sensor issues — from $289. Our technicians are factory-trained on Lochinvar FTXL Fire Tube (Commercial) units and carry common parts on the truck.
How often should the Lochinvar FTX850 be serviced?
Lochinvar recommends annual maintenance to keep the FTX850 efficient, safe, and within warranty (up to up to 10 years). Our maintenance service starts from $259.
Lochinvar FTX850 service across Greater Vancouver
We service the FTX850 in every major Greater Vancouver city.
Other Lochinvar FTXL Fire Tube (Commercial) Models
Book Lochinvar FTX850 service today
Same-day repair available · Free installation quotes · Licensed gas-fitters