Because it&#x27;s a massive safety risk, and believe it or not, the cost is not with doing that. There is a lot of the gas. You <i>must</i> control it.<p>Methane is heavier than air and it will pool down and make a potential FOOOOM!!! event. Unscheduled release of energy bad. Asphyxiation by methane bad. There&#x27;s no odorant and you
can&#x27;t smell it.