@feld @lnxw37a2
I think I'll continue with storable propane, proper air vents are important tho.
>We note, however, that both the epide- miological am chamber studies at or near this range of concentrations have pra'luced inconsistent evidence regaroing the health effects of such exposures

>the population groups that appear most sensitive to nitrogen dioxide exposure include children, chronic bronchitics, asthmatics, and individuals with emphysema

>the IlOSt direct evidence regaroing lung
damage associated with nitrogen dioxide is obtained fran animal stu'lies - such studies conclude that a number of effects occur in a variety of animal species, many of which can be considered serious and irreversible. The relevance of these studies to .human exposure at concentrations found indoors is uncertain.