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One of the best ways to lower your utility bill and stay warm this winter is to prevent heat loss. You can do this by using these tips to check your insulation, windows, doors, plumbing and electrical.


Attics should have at least R-25 batt or loose-fill insulation in Florida. Attic holes and hatches should also be insulated as they leak 15 to 31 percent of heat respectively. This can be done with weatherstripping.

Heat is lost through ductwork in unconditioned areas such as attics, basements, garages and crawl spaces. Insulate the ductwork so heat isn’t lost as it passes through.


Homeowners should check for rotting or cracked window sills and sashes. Also, replace any cracked window panes. If windows have extensive damage, consider replacing them for more energy efficient double- or triple-pane windows.

Prevent heat loss through windows by using shades or drapes. Quilted or pleated shades work to create dead air space and insulate your windows. Drapes not only add to the style of your home but also really help avoid heat loss. Choose drapes that:

  • Are made of tightly woven fabric
  • Hang as close as possible to the window
  • Seal tightly in the middle and to the sides of the window
  • Have pleats to create dead space

A 1/8 inch gap around your doors can let as much heat out as a 2.4 inch hole punched in the wall. Test your weatherstripping by placing a dollar bill in the door and closing it. If the dollar stays, your weatherstripping is fine. If the dollar falls, it’s time to replace the weatherstripping.

Plumbing & Electrical

One place most homeowners don’t think about when looking for air leaks around the home is the plumbing and electrical fixtures. At each point where pipes enter the home or wiring goes to outlets and light switches, heat loss can occur. Use spray sealant around plumbing and foam gaskets in outlets to seal them.

If you need help winterizing your home to prevent heat loss, call the experts at NisAir Air Conditioning and Heating.