Gas ducted heating unit prices vary by unit size, install scope, and regional labor costs. This guide covers the typical cost range for a gas furnace and related ductwork, with explicit low, average, and high estimates and per-unit pricing where relevant. Readers will see how BTU capacity, installation complexity, and permitting shape the final price.
Summary table provides quick price anchors for typical gas ducted heating projects in the United States.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Gas furnace (80-95% AFUE, ~60k-100k BTU) | $2,400 | $3,800 | $6,500 | Includes basic unit and standard installation |
| Fully ducted installation (new ductwork) | $4,000 | $7,000 | $12,000 | Depends on house size and layout |
| Labor for installation | $1,200 | $2,800 | $5,000 | Varies by region and crew size |
| Permits and inspections | $200 | $800 | $2,000 | Local code requirements apply |
| Annual maintenance plan | $100 | $200 | $350 | Typically optional but prudent |
Gas Ducted Heating System Price Range by BTU Size
Prices scale with heat output; a higher BTU unit costs more upfront. Typical 60,000 to 100,000 BTU gas furnaces cover most homes. For a single-family dwelling, a 60k-80k BTU unit often fits standard 1,500–2,500 sq ft layouts, while larger homes or higher ceilings may require 90k-100k BTU or more. Expect installed price ranges of $3,000-$6,500 for the furnace alone, depending on efficiency and brand, with higher-efficiency models costing more upfront.
Assumptions: Midwest labor rates, standard 2-zone duct layouts, natural gas supply, and conventional 1-story to 2-story homes with accessible crawl spaces.
| BTU Range | Unit Price (Installed) | Per 1,000 BTU | Notes |
|---|---|---|---|
| 60,000–80,000 | $2,800–$4,500 | $35–$65 | Common mid-range efficiency |
| 90,000–100,000 | $4,000–$6,500 | $45–$75 | Higher efficiency or luxury features |
Components That Make Up a Gas Ducted Heating Quote
A complete quote breaks out furnace, ductwork, and installation labor. The core price components include the gas furnace (unit cost), ductwork adjustments or replacement, combustion venting, gas line work, thermostat/interface, and labor. The table below shows typical ranges for each part in a standard retrofit project for a mid-sized home.
| Component | Low | Average | High | Notes |
|---|---|---|---|---|
| Gas furnace unit | $2,100 | $3,400 | $5,800 | AFUE 80-95% varies by model |
| Ductwork modification | $1,000 | $2,800 | $5,000 | Includes supply/return runs |
| Gas line installation/re-piping | $300 | $1,000 | $2,000 | Permits may add to cost |
| Venting and combustor vent | $300 | $700 | $1,200 | Venting length affects price |
| Thermostat/interface | $100 | $250 | $500 | Smart controls add cost |
| Labor (installation) | $1,100 | $2,500 | $4,500 | Depends on crew size and access |
Key Variables That Change the Final Gas Ducted Heating Price
Two numeric thresholds commonly shift total cost: home size and ductwork complexity. First, a larger home (3,000+ sq ft) often requires higher BTU units and longer duct runs, boosting both furnace price and labor. Second, ductwork complexity matters: shared walls, multiple stories, or minimal attic access can require more labor and specialized fittings, increasing the quote by several hundred to several thousand dollars. Equipment efficiency, such as 95% AFUE models, adds premium cost but can reduce long-term energy bills.
Ways to Cut Gas Ducted Heating Costs Without Sacrificing Comfort
Cost savings can come from scope control and smarter material choices. Consider pairing a mid-range 80% AFUE unit with standard-density ductwork and upgrading to programmable or smart thermostats later. Delaying nonessential upgrades, like custom metal ducting or high-end air filtration, can save $500–$2,000 upfront. Scheduling installation in off-peak seasons or bundling with other HVAC work may yield volume discounts. If the existing duct layout is sound, refurbishment can be cheaper than full replacement.
Regional Pricing Differences for Gas Ducted Heating Installations
Regional rate differentials can swing total project price by a noticeable margin. In the Northeast and West Coast, labor rates typically run higher, while the Midwest and South often deliver lower installed prices. A comparable 60k-80k BTU system might cost $3,200-$4,800 in one region and $2,800-$4,800 in another, excluding permits. Regions with stricter energy codes may incur additional inspection and venting costs.
| Region | Furnace Installed Range | Ductwork Adjustments | Notes |
|---|---|---|---|
| Northeast | $3,600–$6,000 | $1,400–$3,200 | Higher labor, tighter spaces |
| Midwest | $2,900–$5,000 | $1,100–$2,600 | Moderate prices, vast housing stock |
| South | $2,800–$4,800 | $900–$2,000 | Typically lower labor costs |
| West | $3,200–$5,500 | $1,200–$2,900 | Code and venting considerations |
Installation Labor for Gas Ducted Heating by Region and Crew Size
Labor is a major portion of the total price and varies with crew size. A two-person crew working 6–10 hours to install a mid-range system is common, translating to roughly $1,200–$2,800 in labor. If the project requires ceiling or crawlspace access, lifting equipment, or extensive duct resealing, labor can rise to $3,500 or more. Permit processing generally adds $200–$800, depending on jurisdiction.
| Scenario | Crew Size | Hours | Labor Cost | Notes |
|---|---|---|---|---|
| Standard retrofit | 2 | 6–9 | $1,200–$2,000 | Avg access |
| Complex retrofit | 3 | 9–14 | $2,200–$3,800 | Limited attic or crawlspace |
| New construction | 2–3 | 8–12 | $1,800–$3,400 | Extended duct runs |
Per-Unit Rates for Gas Furnace Units and Ductwork
Per-unit pricing helps compare options quickly across brands and configurations. Typical furnace unit pricing ranges $2,100-$5,800 installed, depending on efficiency and features. Ductwork costs are usually calculated per linear foot or per zone; expect roughly $4-$12 per linear foot for standard sheet metal ducting, with higher-end flex or insulated ducts at $8-$20 per linear foot. For a mid-sized home, 40–60 linear feet of new or rerouted duct runs are common, adding $1,600-$4,200 to the project.
Assumptions: standard 1-story to 2-story layouts, accessible crawl space, no major structural changes, and no major gas line upgrades beyond what code requires.
Permit, Inspection, and Code Upgrades That Impact Gas Ducted Heating Costs
Permits and inspections are essential and can be a hidden price driver. Local building departments often require gas line work permits, duct sealing testing, and combustion air verification. Permit fees typically run $200-$800, with some jurisdictions charging more for new gas lines or pressure tests. If a code upgrade is triggered by the installation, plan for an additional $400-$1,200 in inspection and compliance work. Warranties and service plans, while optional, may add $100-$350 per year but can reduce long-term ownership costs.
Practical quote example comparisons
Real-world quotes illustrate typical ranges and inclusions. Example A: 60k BTU gas furnace, standard duct retrofit, Midwest region, two technicians, standard thermostat, no special venting. Installed price: $3,200–$4,800. Example B: 95k BTU unit, full duct replacement in a two-story home, West region, premium efficiency, smart thermostat, and venting upgrades. Installed price: $7,500–$12,000. Example C: Mid-range update with existing ductwork, modest attic access, Missouri region. Installed price: $4,000–$6,200. These examples incorporate furnace, labor, ductwork, permits, and basic disposal of old equipment.
