Furnace replacement costs a national average of $5,000 to $5,500 installed in 2026, within a documented range of $2,800 to $12,000+ depending on efficiency tier, home size, and installation complexity. Data for this report was drawn from contractor installation surveys, national HVAC industry trade publications, and municipal permit fee schedules across major U.S. markets.
Key Findings at a Glance
- Equipment accounts for approximately 55 to 65% of total installed cost; labor accounts for 25 to 30%
- Lennox raised residential equipment prices up to 7% in February 2026; Goodman and Daikin raised prices up to 7% in March 2026
- State and utility rebate programs for qualifying high-efficiency furnaces can reduce installed cost by $200 to $1,000 or more depending on the provider; the federal 25C tax credit for residential energy efficiency improvements expired December 31, 2025
- Standard-efficiency (80% AFUE) systems are ineligible for most state and utility rebate programs
- Homeowners in northern climate zones (Climate Zones 5 to 7) see the fastest payback on high-efficiency systems due to longer annual heating seasons
Furnace Replacement Cost by Efficiency Tier (National, 2026)
Efficiency tier is the single largest variable in furnace replacement cost. The table below presents installed cost ranges by AFUE rating alongside estimated annual savings and payback periods compared to standard-efficiency equipment.
| Efficiency Tier | AFUE Rating | Installed Cost (National) | Est. Annual Savings vs. 80% AFUE | Est. Payback Period |
| Standard | 80% | $2,800 to $6,500 | Baseline | Baseline |
| High Efficiency | 95% to 97% | $5,000 to $9,000 | $200 to $400/year | 5 to 8 years |
| Ultra-High / Modulating | 98% to 99% | $8,000 to $12,000+ | $300 to $500/year | 7 to 12 years |
Payback periods are modeled on current U.S. residential natural gas rates. Homeowners in northern climate zones with longer heating seasons will typically see payback at the lower end of each range.
Furnace Replacement Cost by Home Size (National, 2026)
BTU capacity requirements vary by home size and climate zone. Figures below reflect national installed cost benchmarks for high-efficiency systems (95%+ AFUE) by home size and assume a standard replacement without ductwork modification.
| Home Size | Required Capacity | Installed Cost Range (National) |
| 800 to 1,200 sq ft | 40,000 to 60,000 BTU | $2,800 to $5,000 |
| 1,200 to 1,600 sq ft | 60,000 to 80,000 BTU | $3,500 to $6,000 |
| 1,600 to 2,000 sq ft | 80,000 to 100,000 BTU | $4,500 to $7,000 |
| 2,000 to 2,500 sq ft | 100,000 BTU | $5,500 to $8,000 |
| 2,500 to 3,500 sq ft | 120,000+ BTU | $7,000 to $10,000+ |
Homes with undersized or significantly aged ductwork may require additional modification at $300 to $600 per duct run. A Manual J load calculation should be completed before any equipment is selected.
Installed Cost Breakdown by Component (National, 2026)
This breakdown allows for component-level evaluation of competing quotes. Figures reflect national contractor market averages in 2026.
| Component | Share of Total Cost | Typical Range | Notes |
| Equipment (furnace unit) | 55% to 65% | $2,000 to $6,500 | Varies by brand tier, efficiency rating, and staging type |
| Labor and Installation | 25% to 30% | $1,500 to $2,500 | Licensed HVAC rates vary significantly by region |
| Permits and Inspection | 1% to 5% | $50 to $300 | Required by most jurisdictions; fee varies by municipality |
| Old Equipment Removal | 1% to 3% | $50 to $200 | Typically included in quotes; confirm before signing |
| Venting Modifications | 3% to 8% | $300 to $800 | Required in most installs when upgrading from 80% to 95%+ AFUE |
| Ductwork Modifications | 0% to 10% | $0 to $600+ per run | Needed when existing ducts are undersized or significantly degraded |
Net Cost After State and Utility Rebates (2026)
State and utility rebate programs are the primary available incentive for high-efficiency furnace replacement in 2026. The federal 25C Energy Efficiency Home Improvement Tax Credit expired for all equipment placed in service after December 31, 2025 under the One Big Beautiful Bill Act. Rebate amounts and eligibility requirements vary by state and utility provider; figures below use a representative range based on commonly available programs.
| AFUE | Incentive Scenario | Installed Cost | State/Utility Rebate | Net Out-of-Pocket |
| 80% | No rebate eligibility | $4,500 | $0 | $4,500 |
| 96% | No rebate applied | $6,500 | $0 | $6,500 |
| 96% | Standard rebate | $6,500 | $500 | $6,000 |
| 96% | Maximum rebate scenario | $6,500 | $1,000 | $5,500 |
| 98% | Standard rebate | $9,000 | $500 | $8,500 |
| 98% | Maximum rebate scenario | $9,000 | $1,000 | $8,000 |
Example: PSE&G Territory (New Jersey)
PSE&G’s HVAC Instant Rebates Program provides $540 instantly on the invoice for a 95%+ AFUE furnace replacing a non-condensing system, or $840 for income-qualified customers ($540 plus a $300 per-measure adder), when installed by a participating contractor. PSE&G also offers up to $25,000 in 0% on-bill repayment financing. This is one example of a utility-specific program; rebate availability and amounts vary by provider.
Check your state energy office or utility provider for current rebate availability and participating contractor requirements.
Further Reading
To request a copy of this report or schedule a free in-home estimate, contact
C&C Air or call
(732) 860-2660.
Sources
HVAC pricing data
Equipment price increases
Incentive programs
Climate data
C&C Air Conditioning, Heating, Plumbing & Electric has served Monmouth and Middlesex County homeowners since 1965. Licensed HVAC technicians provide free in-home furnace replacement estimates throughout Central New Jersey.
