For some years, I have been eyeing this quartz radiant heater from Lee Valley. They say it is a top of the line commercial product and its price of $319 reflects that. I decided to give it a try and the results have far exceeded my expectations. I bought the smaller one because it has the same output and has an eight by ten footprint, just right for my bench and surrounding area. Here are pictures of the unit and its footprint with the lights turned off to show its coverage:
It's hard to believe, but I am comfortable working in the shop when the ambient temperature is forty degrees. I think it's because the benchtop is warm, the tools are warm and my hands are warm. It's also a really good environment for glue-ups. I also like the fact that when it gets up to the high forties I can open the garage door and work in natural light. Right now I am doing some carpentry projects and this is a great feature.
It's too early to tell how durable it is, but I am really happy with this heater.