Bradford-White Corp Water Heater BWCH Manual De Usuario

Page 10

Clearance above grade, veranda, porch,  

12 inches (30 cm) 

12 inches (30 cm) 

deck, or balcony

Clearance to window or door that may be   4 feet (1.2 m) below or to side of opening;  

36 inches (91 cm) 

opened 

1 foot (30 cm) above opening

Clearance to permanently closed window 

See note 4 

See note 5

Vertical clearance to ventilated soffit located 

 

above the terminal within a horizontal  

See note 4 

See note 5 

 

distance of 2 feet (61cm) from the center  

 

line of the terminal

Clearance to unventilated soffit 

See note 4 

See note 5

F =  Clearance to outside corner 

See note 4 

See note 5

G =  Clearance to inside corner 

See note 4 

See note 5

Clearance to each side of center line 

 

3 feet (91 cm) within a height 15 feet above 

 

extended above meter/regulator assembly  See note 4 

the meter/regulator assembly

Clearance to service regulator vent outlet 

See note 4 

3 feet (91 cm)

J =  Clearance to nonmechanical air supply inlet 
 

to building or the combustion air inlet to 

4 feet (1.2 m) below or to side of opening; 

36 inches (91 cm) 

any other appliance 

1 foot (30 cm) above opening

Clearance to a mechanical air supply inlet  3 feet (91 cm) above if within 10 feet (3 m) 

6 feet (1.83 m) 

  

horizontally

Vent termination not allowed in this location 

Vent termination not allowed in this location  for category IV appliances.  A vent shall not 

Clearance above paved sidewalk or paved  for category IV appliances.  For Category III  terminate directly above a sidewalk or paved 

 

driveway located on public property 

appliances, vent must terminate at least 7 

driveway that is located between two single 

 

 

feet (2.13m) above the sidewalk or driveway.  family dwellings and serves both dwellings. 

 

 

 

For Category III appliances that do not violate 

 

 

 

the previous condition, vent must terminate 

 

 

 

at least 7 feet (2.13m) above the sidewalk or 

 

 

 

driveway.

Clearance under veranda, porch, deck,  

See note 4 

12 inches (30 cm) (see note 3) 

 

or balcony

Notes:
1.  In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code.

2.  In accordance with the current CSA-B149.1 Installation Codes.

3.  Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

4.  For clearances not specified in ANSI Z223.1 / NFPA 54, clearance is in accordance with local installation codes and the requirements of  

  the gas supplier.

5.  For clearances not specified in CSA-B149.1, clearance is in accordance with local installation codes and the requirements of the gas supplier.