Gas lines are basically used to transport highly flammable gasesto various appliances that utilize fire. Ovens cook food by fire, water heaters boil water through fire, and fireplaces burn wood with fire. What is important to recognize is that gas lines are incredibly dangerous and should not be tampered with by a person who is not professional. The risks of leaking gas can be very high and the dangers of creating a fire even higher. Whether you are installing a new appliance, smell gas within your home, or are looking to maintain a specific area, consult a professional whenever it involves gas lines.