A company offers a range of gas combination controls. The CV100 is a compact combination control used for applications with high-capacity pilot lines such as large gas boilers and power burners. It combines a single solenoid valve and a regulator. The CV200 is a redundant combination control with two solenoid valves. It is used in direct-spark or hot-surface ignition applications such as direct-vent gas-fired baseboard heaters, space heaters, wall furnaces, water heaters, gas fireplaces, and commercial cooking appliances. The CV300 is also a redundant combination control, but an optional regulated or unregulated pilot is available. Using the CV300 helps to reduce the cost of installation and eliminates the need to stock a separate pilot regulator. The CV300 also has a greater range of regulation up to 80,000 Btu/hr. Applications for the CV300 include gas fireplaces, commercial cooking appliances, and patio heaters.