Direct Vent Exhaust Clearance

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.

Direct vent exhaust clearance.

The vertical distance to the window and the horizontal distance to the window from the nearest point of the gas vent. 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. Direct vent clearance i m trying to confirm the necessary clearance for a direct vent concentric pipe on a 95 propane furnace. Exhaust vents must not be allowed to be obscured or hidden by vegetation.

Clearances to combustible material as listed on the unit nameplate and in the table in figure 11. Nfpa54 fig a 12 9 says that the minimum clearance for a direct vent terminal below a window must be at least. For a gas fireplace exhaust termination cap 3 feet 91cm above if within 10 feet 3m horizontally. Ma code follows nfpa54.

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. For example the travis industries direct vent clearances include some distances that are different from the tables given above. Exhaust vents must be protected against rain and equipped with back flow prevention features e g flap dampers. For non direct vent applications that is side wall venting only the required clearance is 7 feet.

In direct vent applications this clearance distance must be in compliance with local building codes the requirements of the fuel gas supplier for the heating appliance in use and the appliance manufacturer s instructions. Vegetation must not be allowed to grow within 3 feet of an exhaust vent. So that s why i was leaning to the first solution if it wasn t against code. Minimum clearance distance requirements for the exterior vent termination of a gas fireplace heater 8.

We marked on your gas vent photo the two measurements that are typically made. 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. In all areas exhaust vents should be at least 1 foot above roof surface. Direct vent gas fireplace exhaust termination item clearance distance.

12 inches below a window 50k btuh input or greater b.