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I read in your column that compact fluorescent light bulbs (CFLs) give off far less heat than incandescent bulbs. So, won?t my heating bills go up if I replace my incandescent bulbs with CFLs?

(Posted December 9, 2009)

A little. But you'll offset that cost with lower electricity costs; as much as 75% off the lighting portion of your electric bill.

You see, the warmth coming off a traditional light bulb (it uses only 10% of its energy to create light; the rest is lost as heat) is generated by electricity, which typically is more expensive than the fuel you use in your central heating system or wood stove. So, it makes financial sense to swap out your incandescents for CFLs.

Keep in mind that it also makes good sense to get rid of your incandescents now instead of waiting for them to burn out. You'll spend less buying new CFLs than you'll spend keeping incandescents lit. CFLs also can last as much as 10-times as long, so you'll need to buy fewer bulbs over the years. And don't forget outdoor fixtures; CFLs work out there too. Just make sure the starting temperature on the box matches Vermont's coldest outdoor temperatures.

Li Ling for The Home Team

Have a question about energy use in your home? Ask the Home Team! Contact Li Ling, Bob and Kathleen or call toll-free: 888-921-5990 to speak with a customer service representative.