"Kenneth" wrote in message
...

I might try aiming some sort of space heater at the glass
for a while before doing the repair.

Even heating it slightly would lower the level of humidity
between the panes, and that would, in turn, lower the
temperature at which you would see condensation.

The heat won't remove the moisture in the trapped air, only make it warmer.
The moisture would have to escape thru the hole, which won't happen.