Fast_Dare2041 t1_j6eptkh wrote

Town gas was primarily a 50/50 mixture of carbon monoxide and hydrogen. Sometimes, methane was added/created from the gasification process (which increases the energy density) but pure methane wasn’t commonly used until the 50s-60s when, like you said, natural gas began being drilled.

One advantage is that it’s also significantly less toxic than town gas, which is why Sylvia Plath-ing yourself is no longer really a thing.