At 11:51 AM 1/2/2016, Jeff Palmer wrote:
>I've made a little box with aluminum foil and a 100w bulb. You'd be
>surprised how much heat that produces.
>Jeff

Around 350 BTU/hr if all the visible light gets turned into
heat.  Your basic 1500 watt electric heater makes about 5200
BTU/hr.  A heat lamp bulb doesn't waste much as visible, and has a
built-in reflector.  I think they might be 150 watt.  And I've used a
halogen work light to remove microprocessor sockets with a couple
hundred pins from a circuit board.

Yrs,
d