Duravent Stove Pipe DVP Snorkel Termination Cap 14" 5" x 8"

A snorkel termination cap is a specialized DirectVent Pro termination component that extends vertically above the horizontal wall penetration point rather than terminating flush with the exterior wall surface. In a standard horizontal through-wall termination, the vent cap is mounted directly at the wall face and the exhaust and combustion air openings are at the elevation of the wall penetration. Some appliance manufacturers specify a minimum termination height above grade, above adjacent combustibles, or above other nearby features — and in certain installations the standard wall cap cannot achieve this minimum height because the wall penetration itself is too low. The snorkel cap solves this by rising 14 or 36 inches above the wall penetration, elevating the exhaust and intake openings to meet the required minimum height without needing to relocate the wall penetration itself.

The snorkel cap must remain exposed at the exterior of the building because it functions as the active termination of the direct vent system — the exhaust outlet and combustion air intake openings at the top of the snorkel must be freely exposed to the outside atmosphere for the system to operate correctly. Enclosing the snorkel within a wall cavity or chase would block the combustion air intake and prevent flue gas exhaust from dispersing safely, creating a dangerous buildup of combustion gases. Similarly, installing the snorkel below grade would submerge the openings in soil or allow water infiltration into the vent system. The snorkel's 14-inch height is intended to project the termination openings above the wall surface and any immediately adjacent features — the entire snorkel assembly must remain exterior and unobstructed.

The 36-inch 58DVA-SNK36 is selected when the appliance manufacturer's installation instructions specify a termination height requirement that cannot be met with the 14-inch snorkel, or when the physical installation geometry requires a greater vertical rise above the wall penetration. Common situations where the 36-inch snorkel may be needed include installations where the wall penetration is close to grade level and applicable codes require the termination opening to be a minimum height above grade, or where the appliance manufacturer specifies a termination height above adjacent combustibles or surfaces that is greater than what the 14-inch snorkel provides. Always determine the required minimum termination height from the appliance manufacturer's instructions first, then compare against the rise provided by each snorkel height to select the correct variant.

Appliance manufacturers and applicable codes specify a range of clearance requirements for direct vent terminations that the snorkel helps address. These typically include minimum clearance above grade — the finished ground surface — which for smaller appliances under 10,000 BTU/h is generally 6 inches and increases for higher-output appliances. Clearances to operable windows and doors, to air supply inlets, to corners, to soffits, and to other features must also be maintained. When the wall penetration is located such that a standard flush wall cap cannot achieve the required clearance above grade or above an adjacent surface, the snorkel's vertical rise provides the elevation needed. The specific clearances that apply to a given installation are determined by the appliance manufacturer's installation instructions and the applicable gas code for the installation jurisdiction.

Not all appliance manufacturers permit snorkel termination in their installation instructions, and the 58DVA-SNK14 should only be used when the specific appliance's installation instructions explicitly permit or specify snorkel termination for horizontal through-wall configurations. Some manufacturers restrict the maximum horizontal run, total vent length, or number of direction changes permitted in an installation, and adding a snorkel at the termination effectively adds a vertical section to what is otherwise a horizontal run — this may affect the total system configuration limits. Before ordering the 58DVA-SNK14, confirm that the appliance manufacturer's installation instructions permit horizontal through-wall termination with a snorkel cap and that the proposed configuration meets all specified limits for the particular appliance being installed.

A horizontal through-wall DirectVent Pro 5x8 installation using the 58DVA-SNK14 snorkel termination typically includes a wall thimble where the vent passes through the combustible wall, fixed-length pipe sections in the 58DVA series for the horizontal run from the appliance to the wall thimble, and elbow sections if any direction changes are required between the appliance outlet and the wall thimble. The 58DVA-08A adjustable pipe extension allows fine-tuning of the horizontal run length. Wall straps provide support along the vent run where needed. The snorkel cap replaces the standard wall termination cap at the exterior, providing the required vertical rise at the termination point. All components must remain within the DirectVent Pro 5x8 system family and must be confirmed as appropriate for the specific appliance's configuration by the appliance manufacturer's installation instructions.