Newly installed high-efficiency Lennox furnace replacing an aging attic system

Furnace Replacement

Time to Replace Your Furnace?

Furnaces last 15–20 years. If yours is approaching that age, experiencing frequent repairs, or showing signs of a cracked heat exchanger, replacement is the safest and most cost-effective choice.

When to Replace vs. Repair

If your furnace is over 15 years old, needs a repair costing more than half the price of a new unit, has a cracked heat exchanger, or can't maintain consistent temperatures — replacement is the better investment. Many homes built in the 1990s and early 2000s in Folsom's established neighborhoods are now hitting this window.

Safety Concerns with Old Furnaces

A cracked heat exchanger can leak carbon monoxide into your home — a silent, invisible danger. If your technician finds a cracked heat exchanger, the furnace should be replaced immediately. This is not a repair; it's a safety replacement.

Efficiency Gains from Upgrading

Replacing a 20-year-old 80% AFUE furnace with a new 96% AFUE model means nearly 20% less gas consumption. Over 10+ years of use, the energy savings significantly offset the replacement cost.

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