When your furnace stops working or becomes unreliable, knowing what replacement costs look like helps you plan a smart investment. This guide breaks down every cost factor so you know exactly what to expect in 2026.
Quick Answer: Furnace Replacement Costs
| Cost Category | Price Range |
|---|---|
| National Average | $4,500 - $7,000 |
| Typical Range | $2,000 - $10,000 |
| High-End Gas Furnace | $8,000 - $12,000+ |
| Budget Electric Furnace | $2,000 - $4,000 |
Most homeowners spend $4,500 to $7,000 on a new furnace with professional installation in 2026. Gas furnaces cost more upfront but are cheaper to operate in most areas, while electric furnaces have lower installation costs but higher monthly bills.
Gas Furnace Cost Breakdown
Gas furnaces are the most popular heating choice in the United States, used in roughly 47% of homes. Here is what they cost by efficiency level.
| Efficiency Level | AFUE Rating | Equipment Cost | Installed Cost |
|---|---|---|---|
| Standard Efficiency | 80% | $700 - $1,800 | $3,800 - $6,200 |
| Mid Efficiency | 90% - 95% | $1,500 - $3,700 | $5,200 - $8,800 |
| High Efficiency | 96% - 98.5% | $2,800 - $6,200 | $7,500 - $12,000 |
Gas Furnace Costs by Size
| Furnace Size (BTU) | Typical Home Size | Installed Cost |
|---|---|---|
| 40,000 - 60,000 BTU | 1,000 - 1,200 sq ft | $3,500 - $5,500 |
| 60,000 - 80,000 BTU | 1,200 - 1,800 sq ft | $4,000 - $6,500 |
| 80,000 - 100,000 BTU | 1,800 - 2,500 sq ft | $5,000 - $8,000 |
| 100,000 - 120,000 BTU | 2,500 - 3,200 sq ft | $6,000 - $10,000 |
| 120,000+ BTU | 3,200+ sq ft | $7,500 - $12,000+ |
Electric Furnace Cost Breakdown
Electric furnaces are simpler to install and have lower upfront costs, making them a popular choice in milder climates or homes without natural gas access.
| Component | Cost Range |
|---|---|
| Equipment only | $800 - $3,000 |
| Installation labor | $500 - $1,500 |
| Total installed cost | $2,000 - $7,000 |
| Typical installed cost | $2,500 - $4,500 |
Electric Furnace Costs by Size
| Furnace Size (kW) | Typical Home Size | Installed Cost |
|---|---|---|
| 10 kW | 800 - 1,200 sq ft | $2,000 - $3,500 |
| 15 kW | 1,200 - 1,600 sq ft | $2,500 - $4,200 |
| 20 kW | 1,600 - 2,200 sq ft | $3,000 - $5,000 |
| 25 kW | 2,200 - 2,800 sq ft | $3,500 - $6,000 |
| 30+ kW | 2,800+ sq ft | $4,500 - $7,000 |
Gas vs. Electric Furnace: Side-by-Side Cost Comparison
| Factor | Gas Furnace | Electric Furnace |
|---|---|---|
| Upfront cost | $3,800 - $12,000 | $2,000 - $7,000 |
| Annual operating cost | $540 - $665 | $900 - $1,200 |
| Maintenance cost/year | $150 - $300 | $85 - $200 |
| Lifespan | 15 - 20 years | 20 - 30 years |
| Efficiency | 80% - 98.5% AFUE | 95% - 100% AFUE |
| Annual cost of ownership | Lower in most regions | Lower upfront, higher ongoing |
For a deeper comparison of these two options, read our complete Gas Furnace vs Electric Furnace guide.
Factors That Affect Furnace Replacement Cost
1. Fuel Type
Gas furnaces cost $1,500 to $4,000 more to install than electric furnaces due to gas line connections, venting requirements, and combustion air needs. However, natural gas typically costs less per BTU than electricity, making gas furnaces cheaper to run in most markets.
2. Efficiency Rating (AFUE)
Annual Fuel Utilization Efficiency (AFUE) measures how much fuel is converted to heat. A 96% AFUE furnace turns 96 cents of every dollar of fuel into heat. Higher AFUE ratings mean better efficiency but higher equipment costs.
3. System Size
An oversized furnace wastes energy and creates uneven temperatures. An undersized one will run constantly without adequately heating your home. Proper sizing through a Manual J calculation is essential.
4. Blower Motor Type
- Single-speed: Least expensive, all-or-nothing operation
- Multi-speed: More options, moderate cost increase of $300 to $600
- Variable-speed: Best comfort and efficiency, adds $800 to $2,000 to the price
5. Venting Requirements
High-efficiency gas furnaces (90%+ AFUE) use PVC venting, which is less expensive than the metal flue pipes required by standard-efficiency models. However, if you are upgrading from a standard to a high-efficiency furnace, new venting may cost $500 to $1,500.
6. Gas Line Installation
If your home does not currently have a gas line, running one can cost $500 to $2,000 or more depending on the distance from the meter.
7. Thermostat and Controls
Adding a smart thermostat during installation is a smart investment. See our Smart Thermostat Installation Cost guide for details.
8. Labor Rates
Furnace installation labor costs $500 to $2,000, with hourly rates of $50 to $150 depending on your area. Metropolitan areas tend to charge 20% to 40% more.
Cost by Region
| Region | Gas Furnace (Installed) | Electric Furnace (Installed) |
|---|---|---|
| Northeast | $5,500 - $10,000 | $2,500 - $5,000 |
| Midwest | $5,000 - $9,000 | $2,500 - $5,500 |
| Southeast | $4,500 - $8,000 | $2,000 - $4,500 |
| Southwest | $4,000 - $7,500 | $2,000 - $4,000 |
| West Coast | $5,500 - $10,000 | $3,000 - $6,000 |
DIY vs. Professional Installation
Gas Furnace: Professional Only
Gas furnace installation absolutely requires a licensed professional. Improper installation can lead to carbon monoxide leaks, gas explosions, or house fires. There is no scenario where DIY gas furnace installation is recommended.
Electric Furnace: Mostly Professional
While electric furnaces are simpler, they still require electrical work that should be handled by a licensed technician. Unpermitted work can also void warranties and create issues with home insurance.
Potential DIY Savings
- Remove the old furnace filter and clear the work area: saves 30 to 60 minutes of labor
- Handle simple thermostat installation if you are comfortable with low-voltage wiring
- Seal visible duct leaks with mastic or foil tape after the installation
How to Save Money on a New Furnace
- Compare at least three quotes: Prices for the same furnace model can vary by $2,000+ between contractors
- Install in spring or early fall: Off-season discounts of 5% to 15% are common
- Look into tax credits: Heat pumps qualify for up to $2,000 in federal tax credits under the Inflation Reduction Act, and some high-efficiency furnaces may qualify for credits as well
- Check utility rebates: Many gas utilities offer $200 to $800 for high-efficiency furnace upgrades
- Consider a heat pump instead: In moderate climates, a heat pump can replace both your AC and furnace, potentially saving money overall
- Bundle with AC replacement: Save $1,000 to $2,500 when replacing both units together
- Ask about floor models or previous-year stock: Dealers sometimes discount last year’s models
When to Repair vs. Replace
Replace your furnace when:
- It is 15 to 20+ years old
- The heat exchanger is cracked (repair is not safe or cost-effective)
- Repairs exceed 50% of replacement cost
- Your energy bills have increased significantly
- The system requires frequent repairs
- It uses R-22 refrigerant in the AC paired with it
Repair your furnace when:
- It is less than 10 years old
- The issue is a minor component (ignitor, flame sensor, blower motor)
- Repair cost is less than $500
- The system still heats efficiently overall
Use our Repair or Replace Calculator for a personalized recommendation.
Frequently Asked Questions
How long does furnace installation take?
A straightforward furnace replacement typically takes 4 to 8 hours. Converting from electric to gas or installing new ductwork can extend the project to 2 to 3 days.
Is a gas or electric furnace better?
Gas furnaces are better for colder climates where heating costs are a major concern, as natural gas is typically cheaper per BTU. Electric furnaces work well in mild climates, homes without gas lines, or as backup heat for heat pump systems. Read our full Gas vs Electric Furnace comparison.
What AFUE rating should I choose?
In cold climates with heavy heating needs, invest in 95%+ AFUE for long-term savings. In mild climates, 80% to 90% AFUE may provide a better return on investment since the savings do not add up as quickly.
Should I consider a heat pump instead of a furnace?
If you live in a moderate climate (roughly USDA zones 7 to 10), a heat pump can handle both heating and cooling more efficiently than a furnace-plus-AC setup. See our Heat Pump vs Furnace comparison for details.
Does a new furnace require new ductwork?
Not necessarily. If your existing ducts are properly sized and in good condition, they can work with a new furnace. However, your HVAC contractor should inspect the ductwork and recommend any needed repairs or modifications.
In Central Texas? Texas Temp Masters installs gas and electric furnaces with transparent pricing. We will help you choose the right furnace for your home’s heating needs. Call (817) 704-0706 for a free consultation, or visit our Furnaces page for more information.
