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Energy Savings Helper

Window Replacement

Calculate annual energy and dollar savings from a window replacement to energy efficient windows in New York State.

Location
Used to determine heating and cooling degree days
Existing Windows
Type of windows being replaced
Total square footage of window glazing (glass area) being replaced
New Windows
U-factor measures heat transfer (find on window label). Lower is better—opposite of R-value. ENERGY STAR windows are typically 0.25-0.30.
Home HVAC
Primary heating system in the home
Does the home have electric air conditioning?
SEER (Seasonal Energy Efficiency Ratio) from your AC unit's label. Higher = more efficient. Default: 13.4.

Frequently Asked Questions

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