Far enough away.
Have never boondocked but may try it this winter. I know that boondockers don't like others to camp too close. What is considered too close? Thanks Nick
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The one he had was for inside a tent, and came with a low oxygen sensor to keep from asphyxiating you while you sleep. Most RV heaters are vented to the outside air, and shouldn't have that problem. As always, check your vents regularly for bird/wasp/mouse/rat nests plugging them up during the off season.
