Energy Savings Calculator

Let the guided wizard walk you through each step of the calculator.

Project Inputs

Baseline window system

Define the existing fenestration performance you are replacing or comparing with.

Values shown are approximate averages for comparison only.
Not official product data. All trademarks belong to their respective owners.

Early Double-Pane (1980s-90s)

  • Glass: Double clear glass (air gap)
  • Construction: Aluminum or wood
  • Notes: Still common in older homes

DAW product and glass

Select the Dual Action Windows configuration and glazing package for comparison.

Combined U-factor 0.183 Btu/hr·ft²·°F

Project type and location

Estimate glazing area and climate conditions for this project.

Estimated glazed area: 300 ft²

Enter a 5-digit ZIP code to calculate heating and cooling degree days automatically.

Heating cost assumptions

Adjust the fuel price, efficiency, and escalation inputs that drive operating cost and carbon savings.

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