My original post in this thread used an unfortunate phrase.."fake news"
Sorry.
Since my departure from Wa. a month ago I've encountered a wide variety of
temperature and humidity, using my Mr Heater (Buddy).  First was cold,
(20s- F.) dry and windy, then blizzard like snow turning to rain.  Then low
humidity and right at freezing nights, now warm (relatively) and near 100%
with heavy rains... I have no numbers though.  I'd guess my experience with
this device represents a fairly comprehensive sample of conditions we
usually encounter as Vanagon users.
I'm finding the Mr. Heater does not cause me problems with condensation
inside..On the contrary, it often removes steam(and frost) from inside my
windows.
That is weird, since it's supposed to give off vapor...But whatever the
science... moisture inside is no concern in my month of use.
The thing is sorta cheesy and the control knob is placed wrong for right
hand use..One of ours needs to be tilted forward to readily ignite from the
"Pilot".  The other lights up fine...
  I'm not selling these😁but I'm happy with them.. Good unit..'specially
for the price..

On Dec 22, 2016 8:20 AM, "Don Hanson" <dhanson928@gmail.com> wrote:

The word was the Mr. Heater, and others, catalytic propane, create a lot of
water vapour in a Vanagon.  That seems to be fake news, or perhaps an
exaggeration.