This Burnham Commercial assembly unit is a combination of a blower and gas valve, designed to operate on a Voltage Direct Current (VDC) system. The blower component is responsible for the circulation of air within the heating system, ensuring an even distribution of heat. The gas valve, on the other hand, controls the flow and pressure of gas in the system, maintaining optimal combustion conditions. Both components are integrated into one assembly unit for ease of installation and maintenance. The VDC operation ensures efficient energy use and reliable performance under varying power conditions.