And it’s not a great idea, especially given the proliferation of appliances that burn it in room air. And methane has the convenience property of being less de

And it’s not a great idea, especially given the proliferation of appliances that burn it in room air. And methane has the convenience property of being less dense than air. I’m not sure, but I expect that the heavier hydrocarbon gasses might be more likely to accumulate indoors.