While carbon monoxide poses one of the most significant threats, other gas leaks can be just as dangerous. Many homes use natural gas to power their furnaces and heat their water and appliances. The symptoms of gas leaks are similar to those of carbon monoxide poisoning and include headaches, dizziness, nausea, fatigue, and trouble breathing. Taking in too much natural gas can lead to unconsciousness or death, so you must be aware of its presence as soon as possible. When natural gas is present in a house, a small spark can ignite the air, so any light switches, appliances, or stove tops that can create a spark become dangerous. In addition to endangering your family with the possibility of fire, this situation also puts you at risk for substantial property damage. Leak detectors become vital to your family in these instances. These devices can alert them — and you — to gas leaks that are dangerous to your household before the symptoms set in.