Cost to Replace Ventless Fireplace With Vented 2026
Buying and installing a vented fireplace to replace a ventless unit typically costs more than the initial setup. Main cost drivers include permit requirements, gas line or venting work, and professional installation. Cost ranges depend on unit type, venting method, and regional labor rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Ventless unit removal | $200 | $450 | $900 | Labor to disconnect and dispose |
| Vented fireplace unit | $1,800 | $3,500 | $6,000 | Gas insert or zero-clearance model |
| Venting system (chimney/liner) | $600 | $2,000 | $4,000 | Horizontal or vertical venting, liner material |
| Gas line work (if applicable) | $200 | $800 | $2,000 | New run or upgrade |
| Demolition & framing adjustments | $200 | $800 | $2,000 | Firebox, framing, or drywall work |
| Permits & inspections | $100 | $400 | $1,200 | Local rules may vary |
| Labor (installation) | $600 | $1,800 | $4,000 | Per project crew time |
| Delivery & disposal | $50 | $250 | $600 | Carrier and haul-away |
| Warranty & extras | $50 | $200 | $500 | System warranty, starter kit |
Assumptions: region, unit type, venting approach, and labor hours.
Overview Of Costs
Typical project ranges include removing a ventless unit, installing a vented gas or electric insert, and adding proper venting and connections. A reasonable total spreads from about $3,000 to $12,000, depending on the chosen unit, venting complexity, and local permitting. Per-unit costs commonly range from $1,800 to $6,000 for the new fireplace insert alone.
Cost Breakdown
| Category | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials | $1,000 | $2,500 | $5,000 | Fireplace insert, facing, trim |
| Labor | $600 | $1,800 | $4,000 | Installation crew hours |
| Venting | $600 | $2,000 | $4,000 | Chimney liner or vent kit |
| Permits | $100 | $400 | $1,200 | Local jurisdiction fees |
| Delivery/Disposal | $50 | $250 | $600 | Removal of ventless unit |
| Warranty | $50 | $200 | $500 | Limited warranty coverage |
| Contingency | $150 | $500 | $2,000 | Unforeseen fixes |
What Drives Price
Vent type and venting complexity are major drivers. A direct vent gas insert with a new chimney liner costs more than an electric insert with simple wall venting. Fuel type, efficiency, and fireplace size influence both equipment and labor needs. Region and labor rates add another layer of variation.
Labor, Hours & Rates
Typical installation requires a crew of 1–3 tradespeople over 1–3 days. Labor rates in the U.S. commonly fall between $60 and $150 per hour, with higher rates in urban markets. A mid-range project often schedules 18–40 hours of work. Time and crew size directly affect total cost.
Regional Price Differences
Prices vary by region due to permit costs, labor rates, and local code requirements. In the Northeast, expect higher permitting and labor lines; the Midwest may offer lower labor and modest permit costs; the West often shows higher material costs but competitive labor in some markets. Regional deltas can be ±10% to ±25% from national averages.
Labor & Installation Time
Installation time includes removal, structural adjustments, venting work, and final testing. A straightforward swap in a non-vented to vented setup may take around 12–24 hours of labor, while complex renovations can reach 40 hours. Labor hours contribute a meaningful portion of total expense.
Additional & Hidden Costs
Hidden costs may include structural reframing, fire-rated framing, gas line pressure testing, and specialty venting components. Some jurisdictions require a sealed combustion air kit or CO detectors. Energy efficiency upgrades or new finishes may add to the bill. Always budget a buffer for permits and inspections.
Real-World Pricing Examples
Three scenario cards illustrate typical outcomes with distinct specs.
Assumptions for all scenarios: vented gas insert, 36 inch opening, basic mantle, standard 6 inch liner, mid-range permit, and standard installation crew. Assumptions: region varies, specs, labor hours.
Basic — 1,000 BTU electric-to-gas conversion not applicable; use gas insert with simple vent: 12 hours of labor, $1,800 unit, $1,000 venting, $400 permits. Basic setup with minimal reframing.
Estimated total: $4,500–$6,000 with per-unit ranges: $2,000–$3,500 for the insert, $800–$2,000 for venting, plus $400–$900 for labor and permits.
Mid-Range — gas insert, full liner, moderate framing, 24–32 hours: insert $3,000–$5,000, venting $1,200–$2,500, labor $1,800–$3,600, permits $300–$700. Estimated total: $7,300–$11,000.
Premium — high-end zero-clearance insert, custom mantel, enhanced finishes, complex venting: insert $5,000–$9,000, venting $2,500–$4,500, labor $3,000–$5,000, permits $600–$1,200. Estimated total: $12,000–$20,000.