Nota Bene: full document including methodology is at
<http://www.cpsc.gov/library/co08.pdf>.  What I'm presenting is good
info in my opinion, but without certain caveats and methodological
explanations in the full document.  If you're interested in the
subject, read the document.

Non-fire, non-intentional CO deaths associated with consumer products
in temporary shelters in 2005.
Temporary shelters include tents, RV, cube vans, seasonal cabins,
trailers (including horse trailers).
Consumer products do not include factory-installed generators in RVs.

Total -- 31 (2003-2005 average 25, 15% of total CO deaths)

Portable LP heaters -- 10
Generators -- 12
Charcoal -- 2
LP lanterns -- 3
Gas stove -- 1
Gas fridge -- 1
unknown space heater -- 1

Additional 11 fatalities in passenger vans, trucks, autos being used
overnight; caused by heaters, generators, lanterns or multiple products.

Statistically, the scary trend appears to be generators (see the report).

--
David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage," '85 GL "Poor Relation"