181,000 BTU Output FT Series High Efficiency Wall Mount Combi Boiler (NG/LP)

Laars MFTCW199NA2XN FT Series – Wall-Mounted Fire Tube Combi Boiler

The Laars MFTCW199NA2XN from the FT Series is a high-efficiency, wall-hung condensing combi boiler engineered for both space heating and domestic hot water. With a rated input of 199,000 BTU/h and a modulation range up to 10:1, this model is designed for demanding residential hydronic systems where compact form factor and performance are critical.

Performance and Design Highlights

• Heating Capacity: 181,000 BTU/h (DOE), 199,000 BTU/h input
• DHW Flow Rate: Up to 4.8 GPM at 70°F rise
• AFUE: 95%, ENERGY STAR® certified
• Heat Exchanger: Stainless steel fire tube with integrated domestic hot water heat plate
• Turndown Ratio: 10:1 – modulates to match load and improve efficiency

Construction & Functional Components

• Primary Material: ASME-certified stainless steel for both heat exchanger and DHW components
• Controls: Integrated digital display with outdoor reset, pump control, and diagnostic features
• Vent Type: Sealed combustion, approved for both concentric and two-pipe direct venting (PVC, CPVC, or polypropylene)
• Clearances: Wall-hung design allows flexible installation in utility rooms, closets, or tight mechanical spaces

Dimensions and Installation Specifications

• Height: 31.3"
• Width: 17.3"
• Depth: 14.2"
• Weight: Approx. 112 lbs
• Connections: 3/4" NPT for DHW, heating supply/return, and gas inlet

Installation Considerations

The FT Series combi boiler is designed for professional installation in closed-loop hydronic systems. All piping, venting, and gas connections must comply with local mechanical and fuel gas codes. Pre-installed sensors and integrated control logic simplify wiring and commissioning, but combustion setup and proper flue gas venting still require certified HVAC or plumbing technicians.

Application Suitability

Ideal for high-efficiency residential heating applications with limited floor space. This combi model provides both space heating and on-demand domestic hot water, eliminating the need for a separate indirect or tankless unit. It is suitable for fin-tube baseboard, radiant floor heating, and air handler systems.