All tools
Payback · Efficiency
What a modern furnace and AC would actually save you.
Enter your current heating fuel and rough system ages plus what you're spending each season. We'll break down the annual savings from replacing both sides — heating and cooling — with the payback timeline and 10-year math.
Heating side
Cooling side
Home
Numbers assume our installed price for a matched 96% AFUE gas furnace + 18 SEER2 variable-speed AC, or a cold-climate heat pump with dual-fuel backup. Utility rebates, tax credits, and financing terms typically improve these numbers further.
Estimated annual savings
$850 /year
Heating
$450
Cooling
$400
Simple payback
18.9 yrs
10-year savings
$8,500
Est. install cost
$16,000
Financing from
$133/mo
Roughly 3.5 metric tons CO₂e avoided per year.