Wood Stove Installation

Why this matters

Wood stove installation is a specialized service that combines chimney work, building code knowledge, and product expertise. Customers replacing an open fireplace with a wood stove, or installing a new stove in a previously-unheated room, need professional installation per UL listings and local codes. A chimney sweep with stove installation capability captures the customer relationship from purchase to ongoing service.

Pre-installation considerations

Before quoting:

1. Identify the customer's heating needs:

• Whole-home heating vs. supplemental
• Room size + insulation
• Climate (cold winters need higher-BTU stoves)

1. Identify the installation location
2. Verify clearance + safety:

• Distance to combustible walls
• Floor protection requirements
• Vent / chimney path

1. Identify chimney requirements
2. Verify permits required

The pre-installation visit determines feasibility + scope.

Wood stove types

Selection depends on customer needs.

Code requirements

Multiple codes apply:

The customer's installation must satisfy all applicable codes.

Clearance requirements

Each stove has UL-listed clearances:

The stove's UL listing provides specific clearances. Heat shields reduce clearances on some applications.

Floor protection

Required under most wood stoves:

Sizing: extends the required clearance from the stove + the front (typically 18 inches).

Chimney / vent requirements

The stove's exhaust:

The selection depends on:

• Stove specifications
• Path from stove to chimney
• Penetrations needed (through wall vs. ceiling)

Path through the structure

For new installations:

1. Path through interior space: pipe size, clearances
2. Penetration of walls / ceiling: requires firestop / spacing per UL
3. Connection to chimney: tee or other fitting
4. Vertical chimney path: typically need to extend above the roof per code

Code requires:

• Chimney terminates 3 feet above the highest point of the roof in 10-foot radius
• 2 feet above any structure within 10 feet

Verify with the local code; some jurisdictions differ.

Air supply

The stove needs combustion air:

• Some have direct-vent (outside air directly to the firebox)
• Others draw from the room air (need room air supply)
• Manufactured homes have specific requirements (sealed combustion typical)

Verify with the stove manufacturer + local code.

Installation procedure

Step 1: Pull permits

1. Apply for the installation permit
2. Provide plans showing the stove location, clearances, venting
3. Wait for permit approval

Step 2: Receive the stove

1. Inspect the stove for damage
2. Verify all components present
3. Verify UL listing tag
4. Review installation manual

Step 3: Prepare the location

1. Floor protection installed (hearth pad, tile, etc.)
2. Verify clearances to combustibles
3. Heat shields installed if reducing clearances
4. Air supply provisions

Step 4: Position the stove

1. Place on the floor protection
2. Position to allow chimney connection
3. Verify clearances after positioning
4. Customer review before connecting

Step 5: Install the chimney

For new chimney:

1. Plan the path
2. Cut roof / wall penetrations
3. Install firestops at each penetration
4. Install Class A chimney pipe
5. Cap the chimney with appropriate top
6. Verify code-compliant termination height

For existing chimney:

1. Inspect the chimney (Level 2 inspection)
2. Verify it can serve the stove
3. May need relining if undersized OR damaged

Step 6: Connect the stove to the chimney

1. Use approved single or double-wall pipe
2. Verify clearances at the connection
3. Use proper fittings
4. Adjust draft if needed

Step 7: Verify operation

1. First burn (with the customer)
2. Verify proper draft (smoke pencil test if needed)
3. Verify no smoke entering the room
4. Verify the door + damper operate properly
5. Verify combustion gases vent properly

Step 8: Customer instruction

Train the customer on:

1. Building a fire properly
2. Operating the damper
3. Air supply control
4. Annual maintenance requirements
5. Safety (CO detector verification, fire safety)

Final inspection

After installation:

1. Customer satisfaction confirmation
2. Final inspection by building inspector
3. Customer receives:

• Installation manual
• Warranty registration
• Maintenance schedule
• Annual inspection reminder

Maintenance schedule

After installation:

Set up the customer for routine service.

Common pitfalls

• Skipping the permit - code violation; insurance issue
• Wrong clearance for the stove - fire hazard
• Wrong chimney size - draft issues + smoke
• No floor protection - fire hazard
• Skipping the inspection - code compliance issues
• Wrong stove for the customer's heating needs - disappointment

References

• NFPA 211 (Standard for Chimneys, Fireplaces, Vents)
• IRC R1001 (Fireplaces and Wood-Burning Appliances)
• IRC R1003 (Chimneys)
• UL 103 (Chimneys)
• UL 1482 (Solid Fuel Type Room Heaters)
• Manufacturer documentation for the specific stove
• Local building codes
• Manuall internal: Fireplace Insert Install, Chimney Lining Install, Annual Chimney Inspection