Built for the coldest climates in the U.S. — where furnace failure isn't optional to fix. Covering Ohio, Michigan, Illinois, Pennsylvania, and Minnesota.
Make sure you're pricing the right project before you read on.
Replacing the heating unit alone, reusing existing ducts and AC. What this calculator prices.
Furnace plus AC condenser and coil, replaced together — often discounted as a bundle.
Heats and cools with electricity. In cold climates, usually paired with a backup furnace.
Cooling equipment on an existing forced-air system. No effect on winter heating.
Typical all-in cost for a mid-efficiency gas furnace in a 1,500–2,500 sq ft home, including equipment, labor and permits.
| State | Major metros | Typical range | vs. U.S. |
|---|
Five variables account for most of the spread between a $3,000 swap-out and a $12,000 whole-system project.
Every 500 sq ft adds roughly 10,000–15,000 BTU. Oversizing wastes money twice: bigger unit, higher bills.
Moving from 80% to 96% AFUE adds $1,000–$2,000 up front but usually pays back in 6–9 heating seasons.
Leaky, undersized or asbestos-wrapped ducts turn a one-day swap into a multi-day retrofit.
Installer rates run $75/hr in rural counties and $165/hr in metro Chicago or Philadelphia. Permits range $50–$450.
Switching fuel sources means new gas lines, oil tank removal or a 240V circuit — often $800–$3,000 extra.
In OH, MI, IL, PA and MN — all above 6,000 heating degree days — efficiency pays back faster than in most of the country.
| Rating | AFUE | What you get | Equipment cost |
|---|---|---|---|
| Best | 96–98% | Modulating burner, variable-speed blower. Quietest, most even heat, lowest gas bills. | $3,400 – $5,200 |
| Good | 90–95% | Condensing two-stage. The sweet spot for cold climates — qualifies for most rebates. | $2,600 – $4,000 |
| Okay | 80–83% | Single-stage, non-condensing. Lowest up-front price; 20% of your fuel leaves the flue. | $1,700 – $2,900 |
| Poor | Below 80% | Your existing 15+ year old unit. No longer sold new — replacement is the only option. | — |
The $5,000 rule: multiply the unit's age by the repair quote. Over $5,000 means replacement is usually the better spend.
Nationally, homeowners paid an average of $4,813 for a full furnace replacement, with most projects landing between $2,825 and $6,900. In the five states covered here, costs run 4–8% below that national average. A straightforward 80% AFUE gas swap in an 1,800 sq ft home lands near $3,400; a 96% AFUE variable-speed system with new ductwork can pass $10,000.
Most furnace-only replacements take 4 to 8 hours when the new unit is a like-for-like swap on existing ductwork and venting. Switching from an 80% AFUE unit to a 96%+ condensing furnace usually adds a few hours for the new PVC venting and condensate line. Jobs that also need ductwork repair or a fuel-type change can stretch to a full day or two.
In Ohio, Michigan, Illinois, Pennsylvania and Minnesota — all cold-climate states with long heating seasons — a 96%+ AFUE furnace typically pays back its $1,000–$2,000 price premium in 6 to 9 heating seasons through lower gas bills. If you plan to stay in the home 7+ years, the upgrade usually makes financial sense. If you’re likely to sell sooner, a mid-tier 90–95% unit is often the better value.
Yes, in nearly all municipalities across these five states a permit is required for furnace replacement, typically costing $50 to $450 depending on your city and county. Your contractor normally pulls the permit as part of the installation and includes the fee in your quote — confirm this is included before signing.
High-efficiency gas furnaces (95%+ AFUE) may qualify for utility rebates of $200 to $500 through programs like DTE Energy in Michigan or Nicor Gas in Illinois. Federal Energy Star tax credits may also apply to qualifying equipment — check current IRS guidance and your state energy office, since these programs change from year to year.<
Get at least three written quotes from licensed, insured contractors before committing. Pricing for the same job can vary by $1,000 to $3,000 between contractors due to differences in overhead, warranty terms and included services — not necessarily because one is overcharging.
Ohio, Michigan, Illinois, Pennsylvania and Minnesota all sit above 6,000 heating degree days a year — among the coldest, longest heating seasons in the country. In these states, a working furnace isn’t a comfort upgrade, it’s a necessity, and state-level labor rates matter more than a single national average. Focusing on five states lets us go deeper on local pricing than a 50-state calculator can.
Quotes for the same job routinely vary by more than $1,500 within one metro area.
Get free quotesOther home and HVAC projects we've priced using the same methodology.
Most homeowners pay about $4,000 to $9,000 to install central air when ductwork already exists, and $8,000 to $15,000 when ducts have to be added. A standard 3-ton system for a roughly 2,000 sq ft home usually lands between $5,500 and $8,500 installed.
Published cost guides disagree by a few thousand dollars, because they sample different regions and contractors. The ranges below are the zone where most of them overlap, so treat them as a budgeting range and confirm with local quotes.
The size of your home sets the tonnage you need, and tonnage is the biggest equipment cost. These are installed prices (equipment, labor and basic permits):
| Home size | System size | Existing ducts | New ducts needed |
|---|---|---|---|
| 600–1,000 sq ft | 1.5 ton | $2,500–$4,500 | $6,000–$9,500 |
| 1,000–1,500 sq ft | 2 ton | $3,200–$5,500 | $7,000–$11,500 |
| 1,500–2,000 sq ft | 2.5–3 ton | $4,000–$7,500 | $8,500–$13,000 |
| 2,000–2,500 sq ft | 3–3.5 ton | $4,800–$9,000 | $9,500–$15,000 |
| 2,500–3,000 sq ft | 4 ton | $6,000–$11,000 | $11,000–$18,000 |
Tonnage. One ton of cooling covers roughly 400 to 600 sq ft depending on climate, insulation and sun exposure. The equipment alone runs from about $1,900 for a small unit to $5,000 or more for a large one.
Efficiency (SEER2). Federal minimums are 13.4 SEER2 in the northern states and 14.3 SEER2 in the south. Stepping up to a 16+ SEER2 unit typically adds $800 to $2,500 in equipment cost, and pays back through lower summer bills, faster in hot climates.
Ductwork. This is the swing factor. Sound existing ducts keep the job to equipment plus labor. New or heavily repaired ducts can add $3,000 to $10,000 or more and turn a one-day swap into a multi-day project.
Labor and permits. Installation labor commonly runs $1,000 to $4,500 and permits $100 to $500 or more, depending on your city. Metro areas with high labor rates sit toward the top of every range.
Refrigerant and equipment generation. New systems now use lower-impact refrigerants instead of R-410A, which has nudged equipment prices up. Ask your installer which refrigerant the quote assumes.
A bigger unit is not a better unit. An oversized AC cools the house in short bursts, never removes enough humidity and wears out early. An undersized one runs constantly and never catches up.
Ask every contractor for a Manual J load calculation before you sign. It accounts for your insulation, windows, ceiling height and climate, and it is the industry standard for sizing. A quote that sizes the unit only by square footage is a warning sign.
No. The federal Energy Efficient Home Improvement Credit (Section 25C) ended for equipment placed in service after December 31, 2025, so it does not apply to a system you install this year. Check your state energy office and your electric utility, because local rebates for high-efficiency equipment still exist in many areas.
1. Get three written quotes from licensed, insured contractors. Prices for the same job often differ by $1,000 or more.
2. Compare the same specs. Match tonnage, SEER2 rating, brand tier, warranty length and what is included (permit, haul-away, thermostat).
3. Schedule outside peak season. Spring and fall installs are often easier to negotiate than a mid-summer emergency.
4. Replace the furnace at the same time if it is also near the end of its life. Many contractors discount a bundled system. See our furnace replacement cost calculator to budget the heating side.
5. Ask about utility rebates before choosing an efficiency tier.