Industrial switchboards in humid countries often
have small strip heaters that keep the switchboard
warmer than the wet bulb temperature so that no
condensation will form in them . These are flat
strips with tabs on them so they can be screwed to
the inside of the cabinet. If I remember
correctly, they were about 35 watts, so a couple
of them attached in strategic places might do the
job nicely. Try an industrial electrical supply
for them

Tom


"Pete Bergstrom" wrote in
message ...

Last winter I used lamps to slightly warm my
mill and lathe over the cold period when I don't
use the shop (to keep the condensation problem
down). I'm doing that right now, but the light
bulbs burn out and even when working they make a
nice glow that escapes the garage, probably
alerting the up-to-no-good-types that there's
something of value in there.

I've been looking for coffee-cup warmers, which
I've read will do something similar as they put
out about 25 watts of heat. They don't seem to
be around anymore.

Any other suggestions? I have a Model Engineer's
Workshop issue from a few years ago that has a
DIY thermostat and heater project, but I'd just
as soon use something cheap and ready-made.

Thanks,
Pete (in St. Paul, MN)