This Lochinvar gas valve is a two-stage, 120-volt component designed for use in various heating systems. The valve operates by controlling the flow of gas into a furnace or boiler, thereby regulating the heat output. The two-stage functionality allows for more efficient fuel usage by operating at a lower capacity during milder weather and switching to a higher capacity during colder periods. This product is compatible with several Lochinvar models and is designed to meet industry-standard specifications for safety and performance. It operates on a standard 120-volt power supply, making it suitable for most residential and commercial applications.