Nate Nagel wrote:

Well... I don't know whether a 15W CFL produces more or less heat than a
15W incandescent. I ASSume less, but I don't know how much less. That
said, the largest CFL I've seen is 23W and we're talking about 60W light
fixtures, so I don't know that it matters all that much.

There's basic physics at work here. Watts are a measure of electricity
consumption, not light output. Heat produced is completely based on watts
consumed. Incandescent bulbs are essentially electric heaters that happen to
throw out a small amount of light. You just need to make sure you are comparing
the actual current draw and not the equivilent light output.

A modern "60w" CFL is using less that 15w of electricity, the "75w" draw about
18w, and "100w" use about 23w actual.