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Originally Posted by skimoose
Well if you're using it as a heater,
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That wasn't really the point. The point was, the "waste" heat is not wasted. It heats the room.
You can't have it both ways. If you argue that the heating effect is so small that it can be ignored, then this argument can be turned around to say that the energy savings associated with using a technology with less waste heat can be ignored.
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the wasted input energy is coming off as light. So if you're using more bulbs just to get heat you are wasting energy in the form of unnecessary light.
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What do you think happens to those unnecessary photons when they bounce off the walls a couple of times?
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Before I relied on the added heating of incandescent bulbs I'd improve the heat loss efficiency of my building.
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So would I, but that has no logical connection to the point being made.
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Remember that the average human being generates as much heat as a 100W incandescent bulb. So why not just invite the rest of the family into the room for the added heating load, and save some electricity.
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Because then the rest of the house would get colder?
:-)
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Also, unfortunately thanks to deregulation low cost electricity is disappearing.
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So is low-cost heating fuel. It's not the cost of electricity that factors into the analysis, it's the difference in $/BTU for electricity vs $/BTU for whatever heating fuel is available for your home.