And if it’s absorbed into the skin, then it’s also been absorbed into your bloodstream, and is carried to the rest of your body until it’s broken down and eliminated (liver). Until that happens, you’ve got toxic compounds, classed as known carcinogens (benzene etc), coursing through your veins. I hate it when that happens!
Propane, as mentioned above, is non-toxic, but a high volume confined will displace oxygen and so interfere with breathing. And to be clear, only a malfunctioning heater that is vented to the exterior, using any type of fuel, will produce any moisture inside. Moisture is produced inside by heaters that release the products of combustion inside, ie. those without a "chimney" or vent.
I haven’t had to heat the Mac yet, but I’ve used an alcohol burner (Gloy’s Boat Heat Pal) in my distant camping past to pre-warm the tent for about an hour before going to bed. (In a somewhat similar manner to your suggestion, boaterjen).
It completely dries out everything in the tent, makes the sleeping bags warm, and so it’s very comfortable for sleeping when it’s chilly or dewey out. It got turned off when we went into the tent, so asphyxiation was no concern (tents are inherently "leaky"). It also made it easier for me to convince the Admiral to consider some occasional camping (a while ago).
- B.
). I proposed to Ruth under these conditions....
