Q&A: Will using space heaters lower my heating bills?

Consumer Reports News: November 13, 2007 08:08 AM

I heat my home with natural gas but am considering using electric space heaters to try to cut costs this winter. Can portable heaters help me save, or are the claims I've seen just a lot of hype?

If your heater is equipped with a good thermostat and you do not heat the room to a warmer-than-normal temperature, you can save money by using an electric space heater in a room you’re in and keeping the rest of the house chillier. How much you’ll save depends on the room size relative to the rest of the house, how well separated the room is from others in your home, and how you use your space heater.

Like you, most Americans heat their homes with natural gas. Our experts say that if you were to use an electric space heater to warm one room to your normal room temperature and lower the temperature in the rest of the house, the amount you'd save would depend on how much heat that area requires relative to the rest of the house. If the heat required is less than half the total for your house,then you should be able to reduce your overall energy costs. Remember, on average, electricity in the U.S. is about twice as expensive as natural gas for the same amount of heating. So, for the same cost, you can heat only half the area.

Other ways to lower your heating costs, according to our in-house experts, include:
• Turning down your thermostat. Even lowering it 1°F reduces heating costs by about 3 percent.
• Improving the heat distribution of your central furnace instead of using pricier electricity to warm your home. If some rooms are too warm and others are too cold, the heating system is unbalanced and needs adjustment.
• Using a setback thermostat or turning off the space heater. If you go to bed at 11:00 p.m., set the temperature back at 10:00 p.m. or even earlier, or turn off the space heater well before you leave a room. Your house or the room won’t become uncomfortably cool immediately.
• Wearing on a sweater—or two. Mom was right: Extra clothing will keep you comfortable at a lower room temperature.

Finally, be safe when using a space heater. Electric space heaters cause an average of 3,000 fires each year in the U.S., often because of improper use, according to the National Fire Protection Association. Read the NFPA’s safety advice and our coverage of the risks associated with propane and kerosene heaters.

Essential information: Save hundreds on energy costs” features expert advice on cutting your utility bills. See our recent reports on compact fluorescent lightbulbs, thermostats, and windows, all of which can help you lower energy consumption at and enhance the comfort of your home.

E-mail Newsletters

FREE e-mail Newsletters! Choose from cars, safety, health, and more!
Already signed-up?
Manage your newsletters here too.

Home & Garden News


Cars Build & Buy Car Buying Service
Save thousands off MSRP with upfront dealer pricing information and a transparent car buying experience.

See your savings


Mobile Get Ratings on the go and compare
while you shop

Learn more