If there’s a power outage, you might consider using LPG and natural gas equipment. There are several things you can do to keep yourself and others safe:

• If you need to use a barbeque or camp stove to cook, make sure you do it in a well-ventilated area, like a garage with all the doors and windows open. Never use portable LPG appliances in an enclosed space – they’re not designed for indoor use as they produce carbon monoxide, a poisonous gas, so ventilation is essential.
• Do not put pans or pots that are too big on small (canister) gas cookers. This can overheat the canisters and create a gas explosion.
• Do not use cooking appliances for room heating.
• When connecting an LPG cylinder, check all connection points for leaks by using a spray bottle of soapy water. If bubbles appear there is a leak, and you should disconnect and then reconnect and retest. If the leak persists, do not use the appliance and contact a licensed gasfitter.
• Small LPG cylinders should be turned off when not in use.
• Make sure the gas appliance is suitable for the gas type you are using. If the appliance is meant to use natural gas make sure you don’t use it with LPG.
• If you smell gas, turn it off at the supply. 
• If in doubt, get a professional in to check.

How to check LPG connections for leaks