The cost of a new furnace varies widely based on the size of your home, the type of system you choose, and whether any additional work (like duct upgrades) is required. On average, homeowners in the U.S. can expect to pay roughly $3,500 – $7,500 for a standard furnace installed, though prices can be lower for basic models or higher for high‑efficiency units or complex installs. Smaller jobs may fall under $3,000, while premium or larger systems can exceed $8,000 – $10,000. Factors like fuel type (gas, electric, oil), efficiency ratings, labor, permits, and local market rates all influence the final price, so getting a detailed estimate from a reputable HVAC professional is key to knowing what to budget.