Clearance to window or door that may be opened 6” (150 mm)

6” (150 mm)

for fireplaces < 10,000 Btu/h (3 kW),

12” (300 mm)

for fireplaces > 10,000 Btu/h (3 kW)

Clearance to permanently closed window 9” (229 mm)

12” (305 mm)

Clearance to unventilated soffit 12” (305 mm) 12” (305 mm)

Clearance to outside corner 5” (127 mm)

5” (127 mm)

Clearance to inside corner 6” (152 mm) minimum 6” (152 mm) minimum

Clearance to each inside of center line extended above

meter / regulator assembly

36” (910 mm)

within a height of 15 ft above the meter /

regulator assembly *

for fireplaces > 10,000 Btu/h (3 kW)

Clearance to a mechanical air supply inlet 36” (910 mm) above if within 10 ft (3 m) horizontally ** 72” (1830 mm) *

Clearance above paved sidewalk or paved driveway located

on public property

Clearance under veranda, porch, deck or balcony 12” (300 mm) *‡ 12” (300 mm) *‡

Clearance to combustible above (alcove) 18” (457 mm) ** 18” (457 mm) *

In accordance with the current CAN/CGA-B149.1 National Gas And Propane Installation Code

In accordance with the current ANSI Z223.1/NFPA 54 National Fuel Gas Codes

A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings

Only permitted if veranda, porch, deck, or balcony is fully-open on a minimum two sides beneath the floor