drafty door

also replaced the aluminum blinds with these, all 3 for 100$

I use a piece Reflectix cut to fit in the big rear window in my 179.

We do keep the vent open....
I think the rear window is so far from the vent or any other open window that it doesn't get enough air refresh from the windows/vent that do open...
The Reflectix seems to insulate it well enough that it doesn't get dripping wet like it does without it on a cold night.
There is also a fine line between enough ventilation to stop any moisture accumulation but requiring the heater to run almost 100% of the time and just enough ventilation to conserve LP while holding down most of the moisture

It also occurred to me my CPAP puts about 10-12 ounces of pure water into the air overnight from its humidifier...

Out here it is dry, so with the windows open in the middle of the day, all the moisture evaporates quickly.

Originally posted by techntrek One human loses almost a liter of water per day between sweat and exhalation.  Add a few more people and it can rain in a pod that isn't open a bit.  Learned that our first night!  We always kept a window and the vent cracked open a little bit.  Even down to 10 F an electric heater could still keep it warm with those openings.