Actually those detectors near the floor are LP gas leak detectors. All the CO detectors we put in recommended placement about 12" down from the ceiling. I think CO detectors can even be combined in one unit with smoke detectors. Everyone should check their LQ paperwork and be sure they actually do have a CO detector. There is another issue with catalytic type heaters--which won't give off CO unless defective, that is oxygen depletion. I don't think a roof vent allows outside air in if there is heated air going out. I always open a window a bit in the lower level and one in the bed (or roof vent) to encourage air flow. Nancy Mitts Stablegear Tack (was) CIW Trailers www.ciwtrailers.com
From: susan@xxxxxxxxxxxxxxxxxxx
I notice that most trailers
have the carbon monoxide monitors installed near the floor. Makes me think that
the stuff does sink rather than rise.