SAFARI Trek 2002 Owner's Manual page 122

Temperature fluctuations increase the amount of condensation and make wood more
vulnerable to damage. Below freezing temperatures are particularly hard on your coach.
Therefore, strive to maintain a constant temperature in your coach. Do not attempt to
use the coach furnace for this purpose.
Humidity is the source of condensation. The primary defense against humidity is circulation.
If you are storing your coach in a climate-controlled area, open all the doors, cabinets,
closets and drawers to allow air to move freely through these confined spaces. Slightly
open at least two windows so air can move through the coach. Inspect the coach regularly
for signs of condensation.
Trek Owner's Manual
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