SIMPSON DURA-VENT 3" APPLIANCE ADAPTER (PU-3079) 49798

This adapter is designed to fit most 3-inch pellet stove outlet nozzles. It connects the stove's exhaust outlet to the pellet vent pipe system. However, some installers have noted that fit can vary slightly between different stove manufacturers. The adapter should slide over or fit snugly onto your stove's flue collar. It's recommended to verify your stove's specific exhaust outlet dimensions before purchasing, and professional installation is always advised to ensure proper fit and safety compliance.

You must use a high-temperature sealant specifically designed for pellet stove venting applications when installing this adapter. Apply the sealant at the connection point between the adapter and your stove's exhaust outlet to prevent smoke leakage and ensure a secure, airtight seal. Never install the adapter without proper sealing, as this could allow dangerous combustion gases to escape into your living space. The sealant must be rated for the high temperatures generated by pellet stove exhaust.

This PU-3079 adapter is designed for the standard Simpson Dura-Vent PelletVent system, not the PelletVent Pro line. These two product lines are manufactured by the same company but are not compatible with each other. PelletVent Pro features an integrated silicon seal, while the standard PelletVent uses a different connection system. Make sure all components in your venting system are from the same product line to ensure proper fit and safety. Mixing components from different lines can compromise your venting system's integrity.

Yes, professional installation by a qualified person is strongly recommended and often required by local building codes. All pellet vent installations must conform to NFPA 211 standards and should be inspected by your local authority having jurisdiction. Improper installation of venting components can result in dangerous carbon monoxide leaks, fire hazards, or inefficient stove operation. A professional installer will ensure proper sealing, correct clearances to combustibles, and compliance with all safety codes specific to your installation.

The appliance adapter is specifically designed to connect your pellet stove's exhaust outlet to the first section of pellet vent pipe. Unlike standard pipe sections that connect to each other, the adapter has one end configured to attach directly to your stove's flue collar and must be sealed with high-temperature sealant. The other end connects to your pellet vent pipe using the standard twist-lock connection. This adapter is an essential component for starting any pellet vent installation and cannot be replaced with a regular pipe section.

No, this adapter is specifically designed and tested for wood pellet burning stoves only. It should not be used with multi-fuel stoves, wood stoves, gas appliances, or any other type of heating appliance. Different fuel types produce different exhaust temperatures and combustion byproducts that require specific venting materials and configurations. Using this pellet vent adapter with non-pellet appliances could result in venting system failure, dangerous gas leaks, or fire hazards. Always use venting components specifically rated for your appliance type.

The adapter should fit snugly onto your stove's flue collar, creating a secure connection. Some installers report the fit can be very tight initially and may require gentle tapping or rotating while pushing to fully seat the adapter. If you encounter light surface rust on your stove's flange, lightly sanding it may improve fit. However, the connection should never require excessive force or crimping, which could damage the adapter. Once properly seated, seal the connection with high-temperature sealant and allow it to cure according to the manufacturer's instructions before operating your stove.

Simpson Dura-Vent PelletVent systems typically require a minimum 1-inch clearance to combustible materials. However, specific clearance requirements depend on your complete venting configuration and local building codes. Horizontal sections must maintain at least 7 inches above combustible floors (unless shielding is used) and 9 inches below combustibles (unless shielding is used). Your installation must comply with all NFPA 211 standards and local codes. Consult with a professional installer to ensure all clearances are properly maintained throughout your venting system to prevent fire hazards.