An electric duct heater typically costs $600-$2,500 installed in a home, while larger commercial systems can reach several thousand dollars. The electric duct heater price depends mostly on kilowatt rating, duct dimensions, electrical capacity, controls, and how much new wiring the installation requires.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Residential installed heater | $600 | $1,600 | $2,500 | Common 5-15 kW unit with accessible ductwork |
| Commercial installed heater | $1,500 | $4,000 | $7,500 | Higher capacity or added electrical work |
| Heater equipment only | $200 | $700 | $2,000 | Price varies by capacity and control package |
| Equipment rate | $25/kW | $70/kW | $150/kW | Broad range; accessories may be separate |
What a Residential Electric Duct Heater Costs
For a typical home, a 5-15 kW electric duct heater costs about $200-$1,200 for the unit and $600-$2,500 installed. The lower end usually assumes a standard heater, a nearby power source, and straightforward access. Jobs requiring a new circuit, control upgrades, or duct modifications can exceed that range.
Commercial heaters commonly range from 15-60 kW or more. Equipment and installation together may cost $1,500-$7,500, with custom controls or extensive electrical upgrades pushing the quote higher. For a basic residential installation, budgeting around $1,000-$2,000 is a useful starting point.
Assumptions: U.S. mid-market labor rates, standard equipment, accessible ductwork, and no major panel replacement.
How Heater, Controls, and Wiring Shape the Quote
Quotes may separate the heater from the work needed to connect and control it. Costs below are typical planning ranges, not fixed national prices; equipment and labor vary by site and region.
| Cost item | Low | Average | High |
|---|---|---|---|
| Heater and element assembly | $200 | $700 | $2,000 |
| Installation labor | $300 | $750 | $1,800 |
| Controls, sequencer, or thermostat | $75 | $250 | $600 |
| Electrical circuit, breaker, and wiring | $150 | $500 | $2,000 |
| Duct changes, permits, or disposal | $50 | $250 | $900 |
Electrical work can account for a large share of the quote if the existing panel lacks capacity or the heater needs a long dedicated run. Permit fees and inspection requirements depend on the local authority. Ask the contractor to separate heater, electrical, controls, and duct charges so competing estimates can be compared.
Why Kilowatt Rating and Duct Size Change the Price
Capacity is a major cost driver. A 5-10 kW heater often suits smaller zones or supplemental heat, while a 15-30 kW unit may need heavier wiring and more robust controls. Above 30 kW, three-phase power, commercial control requirements, or a larger electrical service may be involved, increasing both equipment and installation expense.
Duct dimensions matter too. A standard rectangular or round duct connection may require little alteration; a mismatch in width, height, or airflow can call for adapters or sheet-metal work. Longer duct runs and restricted access can add hours. Confirm the heater’s required airflow and duct opening dimensions before comparing unit prices.
Assumptions: Capacity ranges describe common applications, not a substitute for a load calculation or equipment specification.
How Many Labor Hours Does Installation Take?
A straightforward replacement may take 3-6 labor hours. A new installation with circuit wiring, controls, and duct adjustments can take 6-12 hours or longer. HVAC and electrical labor commonly runs about $75-$150 per hour, depending on location, trade, and job complexity.
For example, 6-10 combined labor hours at $75-$150 per hour implies $450-$1,500 in labor before materials, permit fees, or troubleshooting. Some contractors quote a flat project price instead. Check whether the quote includes electrician time, startup testing, and control setup.
Regional Quotes for Duct Heater Installation
Installed prices can differ with local wages, permit rules, and contractor availability. As a rough comparison, major metro areas in the Northeast and West Coast may run 15%-30% above a national mid-market estimate. Smaller Midwest and Southern markets may be 5%-15% below it, although remote locations can pay more for travel or limited contractor availability.
These differences are not universal: a panel upgrade or unusual duct layout can outweigh regional averages. Request local quotes using the same heater capacity, controls, and wiring scope. Compare the work listed in each estimate, not just the final total.
When a Replacement Costs Less Than a New Circuit
Replacing an existing heater can cost less when the duct opening, breaker, wiring, and controls are compatible with the new unit. A like-for-like swap may stay near the lower installed range. A new location or a capacity increase may require a larger circuit, panel work, or duct changes, adding hundreds or more to the project.
Electric resistance heat can also carry higher operating costs than a heat pump, depending on electricity rates and climate. A heat pump is a different project with substantially different equipment and installation costs, so compare estimated operating expense as well as upfront price. Have the contractor verify circuit capacity before assuming a replacement will reuse existing wiring.
Ways to Lower the Price Without Undersizing the Heater
Keep the scope close to the existing installation when it is safe and code-compliant. Avoid paying for excess capacity, unnecessary smart controls, or duct changes unrelated to proper airflow. Before approving a larger heater, ask for the sizing basis and confirm that the electrical panel can support it.
Get at least two itemized quotes and schedule non-emergency work when contractors have availability. Clear access to the heater and panel can reduce billed time, but electrical connections and installation should be handled by qualified professionals. Save money through a well-matched size and clear scope rather than cutting required wiring, controls, or safety checks.