https://www.123articleonline.com/rss/author/399579/infiniti-home-comfortArticles written by Infiniti Home Comfort from 123ArticleOnline.comen-usCopyright (c) 123ArticleOnline.com All rights reserved. https://www.123articleonline.com/articles/1405388/furnace-lifespan-when-to-replace-your-aging-unit In this article, we'll discuss the average lifespan of a furnace, signs that indicate your furnace is aging, and the benefits of replacing an aging unit.