The Gas Conversion kit includes fireplace granules, manual control to adjust the flame height from low (20,000 Btu/LP) to high (32,000 Btu/LP), ten foot hose w/tank adapter, high grade fire ring insert, and seven piece ceramic log set of individual logs 5 1/2 to 8 1/2 inches varying lengths. Conversion kits designed for use with propane or natural gas.