The cost of gas heater installation typically ranges from $1,500 to $3,000, depending on the unit type, labor, and additional materials needed.
Installing a gas heater provides efficient warmth for homes and businesses, but costs vary widely based on unit type, labor, and installation complexity. This guide breaks down all factors affecting your gas heater installation price.
Average Gas Heater Installation Costs
The typical range for professional gas heater installation is $1,500–$5,000, with most homeowners spending $2,500–$3,500. Key price factors include:
| Heater Type | Average Installed Cost |
|---|---|
| Wall-mounted ventless | $1,200–$2,500 |
| Vented wall heater | $1,800–$3,200 |
| Console/freestanding | $2,000–$4,000 |
| High-efficiency models | $3,000–$5,000+ |
Labor Cost Breakdown
HVAC professionals typically charge $65–$150/hour for gas heater installation. Most installations take 4–8 hours, resulting in labor costs of $400–$1,200.
Key Cost Factors
1. Heater Type and Size
Larger BTU output heaters (30,000+ BTU) cost more than smaller residential units. Built-in gas heaters often require custom framing, increasing installation complexity.
2. Venting Requirements
Vented models add $300–$800 for flue installation. Direct-vent systems are most expensive but safest.
3. Gas Line Work
New gas line installation costs $15–$25 per linear foot. Converting from electric to gas adds $500–$1,500.
4. Electrical Connections
Most gas heaters need 120V power for controls and fans. New circuit installation adds $150–$300.
Installation Process Details
Wall Heater Installation Steps
- Shut off gas and electrical supplies
- Cut opening in wall (if new installation)
- Run gas line and electrical wiring
- Install venting (if required)
- Mount heater and connect utilities
- Test for leaks and proper operation
According to Homewyse, basic gas wall heater installation includes 20 feet of gas line and 10 feet of venting.
Additional Cost Considerations
Permits and Inspections
Most jurisdictions require permits for gas appliance installation ($50–$200). Some areas mandate post-installation inspections.
Removal of Old Units
Contractors typically charge $100–$300 to remove and dispose of existing heaters.
Energy Efficiency Upgrades
High-efficiency condensing models cost 20–30% more but save on fuel costs long-term. Look for units with AFUE ratings above 90%.
Comparing Fuel Types
Natural Gas vs. Propane
Propane heaters often cost $200–$500 more to install due to tank requirements. Some units like the indoor propane space heaters offer dual-fuel capability.
Maintenance Costs
Annual maintenance averages $100–$200 and includes:
- Cleaning burners and heat exchanger
- Checking gas pressure
- Inspecting venting
- Testing safety controls
DIY vs Professional Installation
While some electric heaters can be DIY installed, gas models should always be professionally installed due to:
- Gas leak risks
- Venting requirements
- Code compliance needs
- Warranty considerations
As noted by HomeGuide, improper gas heater installation can create carbon monoxide hazards.
Regional Price Variations
Installation costs vary by location:
- Northeast: 10–15% above average
- Midwest: Near average
- South: 5–10% below average
- West: 5–15% above average
Getting Accurate Quotes
For precise pricing, obtain 3–4 detailed quotes from licensed HVAC contractors. Ensure estimates include:
- Heater model specifications
- All labor charges
- Materials and permits
- Warranty information
