LPG is a fuel source that works as an alternative to natural gas for heating, cooking and more. It's typically delivered to your house in metal canisters, rather than being pumped in through a supply line.
LPG prices vary depending on where you live and the state of the global market. You'll need to check with an LPG retailer to find out how much it will cost you. LPG isn't available as part of regular gas plans.