Yes, it can be converted to propane gas, however you need to purchase an LP Orifice (Part #: 390686-1) separately to make the conversion. Here is a link to the product page: http://www.pexsupply.com/Honeywell-390686-1-LP-Orifice-for-Pilot-Burners-Q314-Q345-Q3450-Q3451-Q3452 .