On Mar 30, 7:20*am, John Cochrane
wrote:
On Mar 29, 10:52*pm, None wrote:

Do you have electricity at your trailer?
There is a device called Dampp-Chaser that is used inside pianos to
keep them from soaking up humidity. *It is a long rod that is heated
electrically and will elevate temperature enough *to keep a piano dry
(but not *too dry). *Two or three of these strategically placed might
do the job. *I believe they are available in more than one length.

The cheapo solution is a 60 watt lightbulb. Better, you can buy *for
$40 a bilge heater at a boat store. This is a 40 watt heater designed
to go in the bottom of a boat -- where they have the same problem --
to warm it up just enough to stop condensation.

I use this in the winter. Our gliders at least go in a hangar in the
winter, but guess what, a hangar can be worse than outside. A huge
slab of cold concrete is a water magnet on those spring mornings, and
by being inside the solar vents don't work.

If you have power, of course, a dehumidifier is even better.

The problem I still haven't solved is spring/summer, aluminum top, no
power available to trailer. Filling the trailer with water absorbers
as you find in the hardware store helps -- at least the water
absorbers fill up giving some psychological relief.

Here's a challenge for all our talented backyard engineers! How can we
stop this daily condensation cycle for trailers parked outside away
from power?

John Cochrane

Suggestion 1: Move west to a dry climate and get better soaring in the
bargain.