providing a flexible volume buffer that accommodates fluid volume changes during temperature cycling

This assembly is built to original factory tolerances

Utilizing a genuine 100093992 burner ensures that the appliance maintains its original thermal efficiency ratings and structural integrity

this 12" x 12" rectangular bypass damper utilizes a counter-balanced weighted arm to automatically relieve excess static pressure as zone dampers close

Over-fusing a circuit risks permanent damage to the primary control board or transformer

Lennox 12L35 Heater Assembly 321142-301 providing a flexible volume bufferThe Lennox 12L35 Heater Assembly is a high performance 5kW electric heat kit designed for seamless integration into compatible Lennox residential air handlers. Operating on a 240V, 1 phase, 60Hz electrical configuration, this OEM component provides reliable supplemental or primary heating in heat pump or electric only applications. As a veteran preferred HVAC replacement part, it ensures precise thermal output through high grade resistive heating