Log lighter mixing chamber installs in minutes. Shutter attached to the air-gas mixing chamber adjusts the flame from golden radiant to hot blue for a hotter fire. Increases radiant heat in room. Designed to evenly distribute the flame for maximum effectiveness. Heats chimney quickly helping fireplace draw smoke immediately. Ignites even wet firewood. For natural gas fireplaces. No need for starter materials. 1/2" FIP (Female Iron Pipe). CSA (Canadian Standards Association) certified.