White-Rodgers MVK-HC High Capacity Millivolt Valve Kitprovides a high quality millivolt gas valve. The superior construction and design ensure a long lasting and quality product while the straight forward valve offers a simple installation and use. The valve itself is rated for 175F for up to 230,000 BTU with an 18-inch thermopile/pilot assembly and is intended for use with natural gas but includes a propane conversion kit. Be sure to adhere to the manufacturer's listed directions and local codes when installing this product.