Within proper refrigerant handling procedures lies the key to extending system longevity by 15 to 20 years

https://precision-hvac-sacramento-crew-sac-near-sutter-park1477.evergrovio.com/posts/same-day-assessment-reveals-whether-your-20-year-old-ac-unit-deserves-repair-or-replacement

Most furnaces last 15 to 20 years, but their actual lifespan hinges on how well refrigerant is handled during maintenance and repair