Lennox 74M63 Natural Gas Update/Tune Up Kit

The Lennox 74M63 is a Natural Gas Update/Tune-Up Kit a set of upgrade parts that are meant to improve the efficiency and natural gas-fired HVAC systems. With the help of several different parts included in the igniters, gaskets, and filters, the kit allows for the minimization of worn or outdated parts that may lead to improper gas flow, ignition, or combustion. This may lead to more integrated operation, possibly lower energy consumption costs, and decreased emissions of pollutants. The kit is usually and is usually marketed as a single package.