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Lighting Seattle since 1905 Jorge Carrasco, Superintendent
Seattle City Light Conservation | Tip of the Day



Tip 20 - It's Your Loss
Heat loss through a basement floor can account for nearly one-third of your heating bill. Maybe you're wasting energy and harming the environment without realizing it.
 
ENERGY FACTS
  • Heat rises, right? Actually, engineers have found that considerable heat sinks through the uninsulated floors of a home, into the basement.
  • Cold air often enters basements through cracks in the foundation, which is especially costly if the basement has a heated room.
  • Energy travels through many basements in hot water pipes and heating ducts. If they're uninsulated, cold basement air will rob them of heat.
SIMPLE WAYS TO SAVE ENERGY
  • Insulate under the floor. It's the most effective way to save energy if your basement isn't heated. City Light recommends R-19 to R-30, 6" to 10".
  • Insulate hot water pipes (R-3) and heating ducts (R-11 to R-19).
  • Install a rug with a pad. It can work wonders in keeping the frost off your toes and cut your energy use.
  • If you have a heated basement, patch cracks in the foundation. Insulate basement walls.
  • If your basement is unheated, use caulk to seal spaces around heating vents, holes where telephones wires dive under the floor and around pipes or other openings.
  • Insulate your crawl spaces to R-19 to R-30. If you can't squeeze in, call a contractor.
NOTE: Vents under the house release moisture and prevent rot. Don't block them, even in winter.

Tips Directory

The Seattle City Light Web Team:

Seattle City Light -- 700 5th Avenue, Suite 3200, Seattle, WA 98104-5031 -- 206.684.3000
Mailing address: 700 5th Avenue, Suite 3200, P.O. Box 34023 Seattle, WA 98124-4023