ComfortBilt Pellet Insert 4-Inch Venting Kit

Complete Stainless Steel Venting Solution for Pellet Inserts

Ensure safe and efficient venting for your ComfortBilt pellet insert with this durable 4-inch flexible venting kit—precision-engineered for pellet stove inserts.

Key Features

• Includes a 4" diameter stainless steel liner and tee
• A 3" to 4" adapter is included with the kit
• Premium 304/316 stainless steel construction for durability
• Complete with top plate, cap, and installation instructions
• Safe for noncombustible fireplace enclosures only

Product Features

High-Quality Stainless Steel Construction

Built from 316 lightwall stainless steel liner (0.005" thick) and 304 stainless steel top components, this venting kit provides superior corrosion resistance and long-lasting reliability under high-temperature conditions.

Complete Venting Kit

The kit includes everything needed for proper installation:

4” flexible stainless liner

• Stainless TEE fitting
• Flat top plate with collar (13x13)
• 3" to 4" stove adapter
• Square lid cap with collar
• Installation instructions and warranty card

Safe and Certified Installation

This venting kit is approved for use only in noncombustible enclosures and is not compatible with freestanding pellet stoves. It meets all UL-listed performance standards for pellet appliance venting.

Easy to Install and Maintain

Pre-measured components and included instructions make installation straightforward. The flexible liner allows for smooth routing through fireplace chimneys, minimizing the need for additional joints or adapters.

Optimized Airflow Performance

The 4” diameter pipe ensures efficient exhaust flow and reduced ash buildup, improving pellet stove efficiency and minimizing maintenance frequency.

Product Specifications