Coleman 5033 Portable Catalytic Propane Space Heater. See picture of operation! Works well, outstanding heat output 3000BTU and catalytic heaters are safe from CO in a closed environment. Still caution must be used as the surface is very hot and can catch materials on fire. In short, a catalytic heater
is a portable heater with no flame. It relies on natural gas like
propane as a catalyst for a chemical reaction that produces heat. This
makes it far safer for use inside a tent than anything with an open
flame. But that doesn’t mean that there aren’t any fire hazards involved
when used in an enclosed space. Catalytic heaters still get very hot,
so there is still a risk of fire anytime something flammable comes too
close, like your sleeping bag. However, what this does mean is
that it is far safer to use indoors and in a tent. Things are less
likely to catch fire and no flame means no smoke. This makes
it a great option to use as a tent heater. A campfire is always nice,
but it doesn’t help when you’re trying to bed down for the night.