Peak performance declines after 12 years, signaling replacement readiness for most units
https://urgent-appliance-repair-95816.cavandoragh.org/lower-quality-ovens-fail-within-7-10-years-while-premium-builds-last-15-plus
Most refrigerators reach their natural end-of-life threshold between 10 and 15 years, with the most cost-effective replacement window occurring around the 12-year mark when reliability decline becomes steep and repair expenses mount rapidly