When the natural gas industry used the playbook from Big Tobacco | As early as the 1970s, research showed that gas stoves produced indoor air pollution.::As early as the 1970s, research showed that gas stoves produced indoor air pollution.
When the natural gas industry used the playbook from Big Tobacco | As early as the 1970s, research showed that gas stoves produced indoor air pollution.::As early as the 1970s, research showed that gas stoves produced indoor air pollution.
Keep in mind that in the US, homes built before say late 70’s leaked, a lot. So this was less of a concern.
Everywhere I lived was built before 1970, until about 1994. Since then I’ve lived in places as old as 1920 (and that was around 2001).
My grandparents house was built in 1900, with a coal-fired furnace. There was no such thing as “sealed” in that place, between the chimneys, giant single-pane wood windows, etc. It was one of thousands (tens of thousands?) like it in their city.
Then there’s rural homes where things like propane are common: old farm houses, trailers (mobile homes), etc. Again, those places never had tight tolerances.