Savings & comfort

Savings calculator

An illustrative, non-guaranteed example with every assumption shown.

Home square footageApproximate home ageCurrent insulationArea to insulateAnnual heating cost ($)Annual cooling cost ($)Comfort problemsFuel type (optional)Assumed reduction in heating/cooling cost: 15%Adjust this assumption. It is not a measured or guaranteed figure.

Illustrative scenario

Annual

$189

Monthly

$16

$189

1 yr

$567

3 yr

$945

5 yr

$1,890

10 yr

Comfort: for "drafts" in a 2,000 sq ft home built 1950-1980, sealing air leaks in the attic is often a good place to start.

How it's calculated: (heating + cooling) × your assumed reduction × insulation factor (poor 1.0, fair 0.7, good 0.4) × area share (whole home 1.0, attic 0.6, walls 0.4, basement 0.35, crawl space 0.25). This is a non-guaranteed example; actual results depend on your home, equipment, weather and usage.