Hmmmm, well you both are telling me a horrific story here! My little electric heater isn't 'vented' in any way - that's okay? The directions for this heater (of course) warn against using it indoors, as it consumes O; we don't get much cold weather here, and there are a few stories every winter of people running a generator or outdoor heaters indoors (even a charcoal grill!) for heat and asphyxiating the entire family. However, my little glasshouse is sitting out in the yard - it doesn't have any kind of venting system, but has one of those automatic vents (wax-filled piston opener) that opens at a certain temperature.
I'm not worried about carbon monoxide harming me, as I have to open a big sliding door to enter, and that pretty much vents a space that small...and I think plants like the carbons, both mono- and di-. I did the test indicated in the instructions, spraying down the connection to the tank with soapy water to watch for bubbles, and there were none...but I am still concerned about my buds and propane, myself and CO not so much.
When I lit this heater the first time, I did think I smelled hair burning, and checked to see that I still had eyebrows.
I will have to think on this some more before using it - tried it in a shed full of tropicals - they don't need to be warm, they just don't want to freeze; but I'm a bit more anal about the orchids.
Thanks - Nancy
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