Source details

Purchasing Energy-Efficient Residential Windows, Doors, and Skylights

U.S. Department of Energy

Visit source
Publisher
U.S. Department of Energy
Organization type
U.S. government
Accessed
September 6, 2026
Source type
Primary

How DxDetective uses this source

Used as a factual reference; the case wording is original.

Content approach

Original Murtek scenario and wording; no source text, images, marks, or other assets copied or adapted.