Direct Vent Exhaust Clearance

Vegetation must not be allowed to grow within 3 feet of an exhaust vent.

Direct vent exhaust clearance.

A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight 8 feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. Nfpa54 fig a 12 9 says that the minimum clearance for a direct vent terminal below a window must be at least. Direct vent clearance i m trying to confirm the necessary clearance for a direct vent concentric pipe on a 95 propane furnace. For non direct vent applications that is side wall venting only the required clearance is 7 feet.

Exhaust vents must be protected against rain and equipped with back flow prevention features e g flap dampers. Direct vent installation non direct vent installation exhaust outlet ml193df combustion air intake inside of house exhaust combustion outlet air intake outside of house ml193df shipping and packing list. Direct vent gas vent clearance required depend in part on the size in btus btuh or thousands of btus per hour input rating of the heating appliance. Keep in mind that while there is a soffit clearance given there is no clearance given for venting what is expected to be an outdoor air vent location but is in fact under a roof.

The fire clearances for a gas heater that s what we re discussing right that s direct vented can vary depending on the flue vent connector or vent material and type from 0 to perhaps 6 tell me the brand and model of your heater and we ll take a look too. Clearances to combustible material as listed on the unit nameplate and in the table in figure 11. Minimum clearance distance requirements for the exterior vent termination of a gas fireplace heater 8. The vertical distance to the window and the horizontal distance to the window from the nearest point of the gas vent.

We marked on your gas vent photo the two measurements that are typically made. 12 inches below a window 50k btuh input or greater b. For a gas fireplace exhaust termination cap 3 feet 91cm above if within 10 feet 3m horizontally. Direct vent gas fireplace exhaust termination item clearance distance.

Clearance above paved sidewalk or a paved driveway located on public property. The disadvantage is that this would be directly above the propane regulator so we d have to pipe the exhaust vent away. Exhaust vents must not be allowed to be obscured or hidden by vegetation. Ma code follows nfpa54.

For example the travis industries direct vent clearances include some distances that are different from the tables given above.