"todd" wrote in message
...

The only reason that I can think of why your jointer would be worse than
the
other tools would be because the cast iron in the jointer is thicker than
the other tools and doesn't heat up at the same rate.

That's what I was thinking. The underside of the jointer table may not get
as much airflow either. The warmth from the heater may be driving moisture
into the air from all over the shop, and the jointer stays cold enough to
start
collecting it. A dehumidifier might be a good idea - start it up as soon as
the heater is turned on, and park it next to the jointer. -Wm