Quote:
Originally Posted by Bownesian
They are cheaper to operate (because electricity costs about four times per Joule compared to gas)
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That's my biggest point. By saying we could use the heat 8 out of 12 months, you are saying 67% of the time. (I say its less, but I'll give your that.)
Then factor in that electricity costs are 4 time as high as gas per joule, and that 67% goes down to 17%.
I'm not even going to debate the whole "heat rises- lights are on the ceiling so heat is rising into the attic" thing- based on your numbers with CFLs using 23% of the power, plus 17% in heat loss, CFLs use 40% of the energy that regular bulbs use.
Then factor in the A/C cost savings in the summer, the fact that 1/4 to 1/3 of my CFLs are outside (including the garage); it seems to me that CFLs are still the way to go.