Williams 1403822 Direct Vent Furnace Els PW 29614 Industrial-Grade Durability: The Class LB

Industrial-Grade Durability: The Class LB insulation provides superior thermal resistance for long-term reliability in varying climates

Housed in a durable plated casing

it ensures the dynamic balance of the blower assembly

providing reliable thermal expansion control while preventing oxygen ingress and system corrosion

and low-pressure steam systems

Williams 1403822 Direct Vent Furnace Els PW 29614 Industrial-Grade Durability: The Class LBThe Williams 1403822 Direct Vent Furnace is a high efficiency natural gas wall heater designed for compact residential and commercial heating applications. Delivering 14,000 BTU hr, this unit is the engineered direct replacement for the 1403612, ensuring seamless HVAC retrofit compatibility with existing venting configurations. Utilizing a sealed combustion system, this direct vent heater draws combustion air from outdoors, making it ideal for