Figure 12a. Vent Terminal Clearances (Other than Direct Vent or “Power Vented” Installations)

 

 

Canadian

US

 

 

Canadian

US Installations2

 

 

Installations1

Installations2

 

 

Installations1

 

A=

Clearance above

12 inches

12 inches

H=

Clearance to each side

3 feet (91 cm) within a

*b

 

grade, veranda, porch,

(30 cm)

(30 cm)

 

of center line extended

height 15 feet (4.6 m)

 

 

deck or balcony

 

 

 

above meter/regulator

above the

 

 

 

 

 

 

assembly

meter/regulator

 

 

 

 

 

 

 

assembly

 

B=

Clearance to widow or

36 inches

4 feet (1.2 m)

I=

Clearance to service

36 inches

*b

 

door that may be

(91 cm)

below or to the

 

regulator vent outlet or

(91 cm)

 

 

opened

 

side of opening;

 

oil tank vent

 

 

 

 

 

12 inches

 

 

 

 

 

 

 

(30 cm) above

 

 

 

 

 

 

 

opening

 

 

 

 

C=

Clearance to

*b

*b

J=

Clearance to non-

36 inches

4 feet (1.2 m)

 

permanently closed

 

 

 

mechanical air supply

(91 cm)

below or to side

 

window

 

 

 

inlet to building or the

 

of opening; 12

 

 

 

 

 

combustion air inlet to

 

inches (30 cm)

 

 

 

 

 

any other appliance

 

above opening.

D=

Vertical clearance to

*b

*b

K=

Clearance to a

6 feet

3 feet (.9 m)

 

ventilated soffit

 

 

 

mechanical air supply

(1.83 m)

above if within

 

located above the

 

 

 

inlet

 

10 feet (3 m)

 

terminal within a

 

 

 

 

 

horizontally

 

horizontal distance of

 

 

 

 

 

 

 

2 feet (.6 m) from the

 

 

 

 

 

 

 

center line of the

 

 

 

 

 

 

 

terminal

 

 

 

 

 

 

E=

Clearance to

*b

*b

L=

Clearance above paved

7 feet

7 feet

 

unventilated soffit

 

 

 

sidewalk or paved

(2.13 m) †

(2.13 m) †

 

 

 

 

 

driveway located on

 

 

 

 

 

 

 

public property

 

 

F=

Clearance to outside

*b

*b

M=

Clearance under a

12 inches (30 cm) ‡

*b

 

corner

 

 

 

veranda, porch, deck, or

 

 

 

 

 

 

 

balcony

 

 

G=

Clearance to inside

36 inches

36 inches

 

 

 

 

 

corner

(91 cm) *a

(91 cm) *a

 

 

 

 

1In accordance with the current CAN/CGA-B149 Installation Codes.

2In accordance with the current ANSI Z223.1-(Latest Edition)/NFPA 54 National Fuel Gas Code.

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

‡ Permitted only if a veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor. *a) A minimum clearance value determined by testing in accordance with section 2.20.

*b) “Clearance in accordance with local installation codes and the requirements of the gas supplier”.

20

Page 19 Page 21
Page 20
Image 20
Bradford-White Corp EF operation manual Canadian US Installations2 Installations1 Clearance above
Page 19 Page 21

EF specifications

Bradford-White Corporation, a leader in water heating technology, has long been recognized for its innovation and quality in the industry. One of its standout offerings is the EF series, a line of high-efficiency water heaters designed to meet the growing demand for energy efficiency and reliable performance in residential and commercial applications.

The Bradford-White EF (Energy Factor) series features advanced, state-of-the-art technologies that optimize energy use while providing consistent hot water availability. One of the most notable aspects of these systems is their impressive energy efficiency ratings. The EF series utilizes cutting-edge insulation materials and advanced combustion technology, helping to minimize heat loss and reduce energy consumption. Customers benefit not only from lower utility bills but also from a product that is environmentally friendly.

Key features of the EF series include a patented Hydrojet Total Performance System, which enhances efficiency by reducing sediment buildup within the tank. This system contributes to a longer lifespan and optimal performance of the water heater, ensuring users have reliable hot water even during peak demand periods. Additionally, the EF series incorporates an intelligent electronic control system that monitors and adjusts the operation of the unit, further maximizing efficiency and providing precise temperature control.

Safety is another major consideration in the design of the EF series. Bradford-White has integrated advanced safety features, including a flame arrestor and a robust pressure relief valve, which ensure that the units operate safely and adhere to the highest industry standards. This commitment to safety demonstrates Bradford-White’s focus on providing peace of mind to homeowners and business owners alike.

Ease of installation and maintenance is a significant advantage of the EF series. Its compact design allows for flexible installation options, making it suitable for a variety of spaces, including tight or hard-to-reach areas. Moreover, the EF model is designed for simplified maintenance, which helps reduce labor costs and downtime for both homeowners and professionals.

Overall, the Bradford-White EF series is an excellent choice for those seeking a reliable, efficient, and safe water heating solution. With a blend of innovative technology, energy efficiency, and user-friendly features, the EF series exemplifies Bradford-White’s commitment to quality and customer satisfaction, making it a trusted name in the water heating industry.
Top Page Image Contents