Take a look at the DBS series tube heaters at www.reverberray.com.
Is that what you had in mind?

: I've put my first coat of varnish onto my two boats (and MAN do they look
: good). But, naturally, the outside temperature has plummeted and my tiny
: space heater can no longer keep up in the drafty detached garage that is
: my workshop.

: The little bit I've read about radiant panels, on this board and elsewhere,
: makes them sound like a pretty good solution for keeping warm in my shop
: -- the energy goes into heating people and kayaks first, and not into
: heating the air first and the objects second.

: Does anyone have any links or sources for more information about radiant
: panels, and suggestions where I might obtain them?