182,000 BTU Output FT Series High Efficiency, Floor Standing Heat Only Fire Tube Boiler (NG or LP)

Laars LFTHF199NA1XN FT Series – High-Efficiency Floor-Standing Fire Tube Boiler

The Laars FT Series model LFTHF199NA1XN is a floor-mounted, condensing, heat-only boiler engineered for high-efficiency residential hydronic heating applications. Designed with a durable stainless steel fire tube heat exchanger and a 10:1 turndown ratio, this boiler provides responsive performance and precise load matching. Its compact footprint and top-mounted piping connections make it well-suited for both retrofit and new construction projects where mechanical room space is limited.

Product Highlights

• Heating Input: 199,000 BTU/h
• DOE Heating Capacity: 182,000 BTU/h
• AFUE: 95% – ENERGY STAR® Certified
• Heat Exchanger: ASME-certified stainless steel fire tube design with welded construction
• Boiler Type: Condensing, heat-only, modulating

Design & Control Features

• 10:1 Turndown Ratio: Reduces short-cycling and improves seasonal efficiency
• Integrated Pump and Low Loss Header: Included for hydraulic separation and simplified piping
• Digital Control Platform: Offers outdoor reset, multi-zone integration, diagnostics, and pump control
• Vent Options: Direct vent, using 2" or 3" PVC, CPVC, or polypropylene materials

Installation Considerations

• Height: 38 inches
• Weight: Approximately 143 lbs
• Connections: Top-mounted supply, return, gas, and condensate ports for reduced floor-level congestion
• Gas Type: Field-convertible for natural gas or LP applications

Installation should be performed by a licensed contractor to ensure compliance with mechanical codes and to verify proper venting, combustion calibration, and wiring. The unit comes pre-assembled with necessary control components, allowing for faster setup and commissioning when replacing legacy equipment.

Application Suitability

The FT Series is compatible with hydronic baseboard, radiant floor, and air handler systems. It can be paired with an indirect water heater to supply domestic hot water, and is fully modulating to meet varying heating demands with minimal energy waste.

Additional Notes

• Built-in Air Intake Screen for added protection
• Multiple Zone Compatibility with built-in control logic
• Corrosion-resistant components for long-term operation