What additional parts are needed for this heat exchanger installation

and 624631-B

Optimized Performance: Facilitates rapid heat-up for efficient gas burner ignition and reduced startup lag

this high limit safety control ensures the system remains within safe operating parameters by interrupting the electrical circuit if the heat exchanger exceeds its factory-set thermal threshold

The Resideo TH6220U2000 is a versatile T6 Pro Programmable Thermostat engineered for multi-stage applications

Lennox 95M53 Orifice mario What additional parts are neededTechnicians and contractors know that maintaining proper airflow is non negotiable for system longevity and efficiency. The Lennox 95M53 Orifice, also recognized by part numbers 100001 03 and 68J46, is a critical condenser fan orifice ring designed specifically for 13ACD, 13ACX, and 13HPD series units. This HVAC replacement part features an 18 1 2 inch internal diameter and stands approximately 4 inches tall, serving as the aerodynamic guide for the