Beyond 12 years, the 50% cost threshold signals when replacement outpaces repair economics

https://precisionhvacnearuc-davis.yousher.com/coverage-limits-determine-true-installation-costs-for-2000-square-foot-homes

The ideal age to replace an HVAC system hinges on documented cost-ratio data: once repair expenses exceed 50% of replacement cost in a single season, replacement becomes the data-backed threshold