I want to build a lightbulb + paintcan fermentation heater like so:
http://brewstands.com/fermentation-heater.html
I've read to use a 60-watt bulb, but most of the literature I've seen on the topic is a few years old. How has the situation changed since the recent change in bulb manufacturing in the USA?
I hear the new tungsten bulbs are more efficient, requiring something like 20% less energy for the same light output. Obviously less energy means less heat, but I was never completely clear on how much of the heat output of a light bulb is directly related to its light output, either.
To wit: Should I use a new-series incandescent bulb in my build, or has the decline of incandescents mooted this heater?
http://brewstands.com/fermentation-heater.html
I've read to use a 60-watt bulb, but most of the literature I've seen on the topic is a few years old. How has the situation changed since the recent change in bulb manufacturing in the USA?
I hear the new tungsten bulbs are more efficient, requiring something like 20% less energy for the same light output. Obviously less energy means less heat, but I was never completely clear on how much of the heat output of a light bulb is directly related to its light output, either.
To wit: Should I use a new-series incandescent bulb in my build, or has the decline of incandescents mooted this heater?