Corrections log
- How long does an asphalt shingle roof last? — 2026-10-02: source WAF-blocked (nachi.org 403 on all automated access); content unverified; drafted pending re-verification
- How long does a gas furnace last? — 2026-10-02: source URL 404 (energy.gov/energysaver reorganized 2026); drafted pending re-verification from production machine
- How long do heat pumps last? — 2026-10-02: source URL 404 (energy.gov/energysaver reorganized 2026); drafted pending re-verification
- How long do water heaters last? — 2026-10-02: source URL 404 (energy.gov/energysaver reorganized 2026); drafted pending re-verification