Furnace Installation Cost Calculator

Use this furnace installation cost calculator to estimate equipment and labor costs for
a new furnace in the United States, based on home size, efficiency rating, and region.
US-Specific Pricing
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Furnace Cost Calculator
How much will upgrading your furnace cost? Get a new gas furnace price estimate instantly with this short quiz.
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This helps estimate the right furnace capacity for your home.
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How Much Does a New Furnace Cost

Furnace installation costs typically range from $3,000 to $11,000+, depending on the furnace type, AFUE efficiency rating, home size, and region. On average, most homeowners spend between $4,500 and $7,000 for a complete furnace replacement including all labor and materials.
Furnace TypeAFUEInstalled Cost (USD)
Entry-Level Single Stage80%$3,200 – $5,200
Mid-Range Two Stage90–95%$4,500 – $7,500
High-Efficiency Variable Speed96–98%$6,500 – $11,000+
Natural Gas Furnace (average)92%$4,200 – $6,800
Propane Furnace92–96%$4,800 – $8,000

What Affects Furnace Installation Cost?

🏠 Home Size & BTU Load
Larger homes require higher-capacity units. A 1,000 sq ft condo may need a 40,000 BTU furnace, while a 3,000 sq ft home may need 120,000 BTU.
⚡ AFUE Efficiency Rating
Higher AFUE (96–98%) furnaces cost more upfront but significantly cut monthly gas bills. Minimum AFUE rules are region-specific in the U.S.: northern states require a 90%+ condensing furnace, while southern states allow 80% as the floor — unlike Canada's single nationwide 92% minimum.
🔄 Single vs. Two Stage
Variable-speed and two-stage furnaces provide better comfort and efficiency but add $1,000–$2,000 to the installed cost versus single-stage models.
📍 Region & Labor Rates
HVAC labor varies significantly by region. Northeast and West Coast metro installations (e.g. New York City, San Francisco) typically cost more than the Midwest or South, reflecting higher labor rates and stricter local codes.
🔧 Ductwork & Venting
Replacing old ductwork, adding new venting for high-efficiency units, or upgrading the gas line can add $500–$2,500 to your total cost.
🏷️ Brand & Warranty
Premium brands command higher prices than value brands, but often include better warranties and longer lifespans.

Furnace Cost by Region (Estimates)

Exact cost depends heavily on local labor rates, permit fees, and code requirements — use these as a starting point, not a quote.
Northeast
$5,000 – $9,500
Midwest
$4,200 – $8,000
South
$3,800 – $7,500
West
$4,500 – $9,000

💡 Rebates & Incentives

The federal Energy Efficient Home Improvement Credit (25C) for furnaces ended for equipment installed in 2026 and later — it no longer applies. What's still available varies by state and utility: many electric and gas utilities offer their own rebates for high-efficiency (ENERGY STAR-certified) furnaces, and some states administer IRA-funded HOMES/HEAR rebate programs. Search DSIRE, the official U.S. database of state incentives, or check with your local utility, for programs currently available in your area.

Frequently Asked Questions

How long does furnace installation take?

Most professional furnace installations take 4–8 hours, or a full day if ductwork or venting needs modification.

In most U.S. jurisdictions, yes — a mechanical or HVAC permit is typically required (commonly $50–$500, though it varies widely by city/county), and your licensed contractor usually pulls it as part of the job.

A well-maintained furnace lasts 15–25 years, with high-efficiency models reaching the upper end when tuned up annually.

Use the 5,000 Rule: if furnace age × repair cost exceeds $5,000, replacement is usually the better financial choice.

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Rebates Vary by State
Many U.S. utilities and states offer rebates
for high-efficiency systems
the federal furnace tax credit ended for 2026 — check your state and utility for current programs.
All Furnace Calculators
More US calculators coming soon — meanwhile: