The official numbers on fixtures, windows and insulation as they apply to Boise's climate, code and utilities.
1.28
gallons per flush: the most a WaterSense toilet may use
0.22
maximum U-factor for an ENERGY STAR window in Boise; Idaho code allows 0.32
$1,200
yearly federal 25C credit cap, which ended for work placed in service after 2025
Every figure links to the public record it came from, and each study lists what the data cannot tell you. You are free to quote these figures with a link back to the study.
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