On Wed, 14 Nov 2007 04:18:36 +0000, JoeSpareBedroom wrote:

perforated


It has many small holes in it to allow heat to escape. That's why a
radiant heater does not work well, even if it's only 2 feet away from me.
The heat escapes through the ceiling before it warms you. That's why I'm
looking for a heater with a fan, to blow the hot air directly on me,
before it escapes through the ceiling.