Gas Supply System:
Gas may supply power for a number of home appliances, (water heater, furnace, oven, range, heaters, etc.). The homeowner should never attempt to repair the gas lines in the home. In most areas a local gas company will service the gas system. If a gas leak is suspected, all the gas company at once.
If you smell gas, check the connections of various appliances in the house. If you cannot locate the source of the escaping gas immediately, then you should suspect a gas leak. Turn off the main gas valve and call the gas company immediately. While you are waiting do not light any matches, lighters, or any flame. Open all windows and doors to ventilate your home. Every member of the household should know where the main gas shut-off valve is located before an emergency arises.
DANGER: The gas piping supply of your home is designed for a supply pressure of between 7 and 14 inches of water column, (1/4 to 1/2 p.s.i.). DO NOT operate any gas-fueled appliance(s) if the pressure to your home is outside this range. If necessary, a pressure regulator must be used to reduce supply pressure.
If your home is equipped with bottled gas for cooking, heating, or both extreme caution should be used before turning on the gas at the cylinder. All appliance valves MUST be closed. If the home has been in transit, all fuel lines, connections, and appliance valves must be checked before and after opening the cylinder valve.
DANGER: Never use a match or flame when checking for gas leaks. If any type of leak (no matter how small) is even suspected do not light any type of flame. Turn off the main gas shut-off valve and then call the gas company.