Tjernlund Products HS3 Power Venters 318172-701 making it the standard replacement

making it the standard replacement for multi-fan blower assemblies found in Enviro-Tec series equipment

this HVACR expansion valve maintains consistent superheat settings even under fluctuating ambient conditions

Restores proper power distribution and system control functions

Rugged Protection: The TEAO enclosure prevents debris and moisture from compromising the internal windings

Compatibility: Successor to 9004448105

Tjernlund Products HS3 Power Venters 318172-701 making it the standard replacementThe Tjernlund HS3 Side Wall Vent System is a high performance power venter engineered for gas fired furnaces, boilers, and water heaters. Designed to provide positive mechanical draft where natural draft venting is restricted, this sidewall venter eliminates the need for vertical chimneys. The HS3 utilizes a stainless steel construction and high temperature motor to withstand flue gas temperatures while maintaining consistent static pressure. As a gas