4" PELLET ADAPTER TO 6"Ø CLASS A CHIMNEY VOP0154

The VOP5154 is designed for homeowners who are replacing an existing wood-burning or oil-burning appliance connected to a 2100 Series Class A insulated chimney with a pellet stove. The adapter allows you to utilize your existing factory-built chimney system without costly replacement. The 4-inch end connects directly to standard pellet vent pipe from your pellet stove, while the 6-inch end connects to a 2100 chimney universal adapter, creating a complete venting path through your existing Class A chimney.

To complete the installation with the VOP5154 adapter, you will need a 6-inch 2100 chimney universal adapter (also called a DVL/DuraBlack chimney adapter), which is sold separately. This universal adapter fastens into the chimney support box or wall thimble and provides the connection point between your existing Class A chimney and the VOP5154 adapter. You'll also need appropriate lengths of 4-inch pellet vent pipe to connect from your pellet stove to the adapter, along with any necessary elbows, tees, or cleanout components for your specific installation.

The VOP5154 is specifically designed for use with 2100 Series Class A insulated chimney systems (also known as DuraTech, DuraPlus, or DuraPlus HTC systems from various manufacturers). It is not compatible with masonry chimneys or other types of factory-built chimneys. If you're unsure about your existing chimney type, consult with a qualified chimney professional or check the manufacturer's label on your chimney components before purchasing this adapter.

No, the VOP5154 features an innovative gasket system that creates a secure, leak-proof seal without requiring high-temperature silicone sealant. This revolutionary design eliminates the mess and complexity of applying sealant while ensuring reliable performance. The precision-formed ends and integrated gaskets work together to prevent exhaust leaks at all connection points, making installation cleaner and faster while maintaining safety standards.

The VOP5154 is rated for continuous operation with flue gas temperatures up to 570°F, which exceeds the typical operating temperatures of pellet stoves. The stainless steel inner wall withstands high temperatures while the double-wall construction provides insulation and maintains proper draft. This temperature rating makes the adapter suitable for wood pellets, corn, and various other biomass fuels that may produce different combustion temperatures.

The dual-wall construction with galvalume steel outer wall and stainless steel inner wall provides multiple critical benefits. The stainless steel inner wall resists corrosion from acidic condensates produced by pellet combustion and maintains structural integrity at high temperatures. The galvalume outer wall provides exceptional weather resistance and durability. The air space between walls provides insulation that helps maintain proper flue gas temperatures, improving draft and reducing condensation that can lead to creosote buildup or system degradation.

The VOP5154 adapter is typically used at the point where pellet vent pipe transitions to the existing Class A chimney system, which may be either inside the home (such as in a basement or at ceiling level) or at an exterior wall penetration point. However, the adapter must always be used in conjunction with a properly installed Class A chimney system that is designed for the specific installation location. For outdoor installations through exterior walls, ensure proper use of wall thimbles, support boxes, and appropriate clearances to combustible materials as specified in the manufacturer's installation instructions and local building codes.