Vent pipes serving power vented appliances are classified by building codes as “vent connectors.” Required clearances from combustible materials must be provided in accordance with information in this manual under Location of Water Heater and Clearances, as well as the National Fuel Gas Code and local codes.

Table 7. Venting Table - Examples of Maximum Venting Distances.

Maximum Straight

Number of 90º Elbows

Maximum Total Equivalent

Pipe Distance

Length of Vent Pipe

 

41 ft (12.5 m)

0

41 ft (12.5 m)

35 ft (10.7 m)

1

41 ft (12.5 m)

29 ft (8.8 m)

2

41 ft (12.5 m)

23 ft (7.0 m)

3

41 ft (12.5 m)

17 ft (5.2 m)

4

41 ft (12.5 m)

11 ft (3.4 m)

5

41 ft (12.5 m)

5 ft (1.5 m)

6

41 ft (12.5 m)

NOTICE

Each 90º elbow is equivalent to 6 ft (1.8 m) in straight vent pipe length. Each 45 degree elbow is equivalent to 1.5 ft (0.46 m) in straight pipe length. The total maximum equivalent vent pipe distance cannot exceed 41 feet (12.5 m). The condensate collector must be used if the venting system height is more than 5 ft (1.52 m) above the water heater.

VENTING SYSTEM LAYOUT

Refer to the preceding illustration and location requirements for location of the vent terminal and also local and state codes. In the absence of local codes, refer to the latest edition of the National Fuel Gas Code ANSI Z223.1/NFPA 54. Keep the venting system as short as possible and keep the number of elbows used to a minimum. The water heater may be vented directly through the wall (horizontally) or vertically through the roof. In all cases, the maximum equivalent length of vent pipe allowed is 41 feet

(12.5 m). To calculate the total equivalent feet of vent pipe use the following formula:

D = L + (EL90 x 6) + (EL 45 x 1.5)

For Length in Feet

D = L + (EL90 x 1.83) + (EL45 x 0.46)

For Length in Meters

D = Total Equivalent Length of Venting System

L = Length of Straight Section of Vent / Air Intake Pipe (in feet) EL90 = Number of 90º Elbows.

EL45 = Number of 45º Elbows

The venting table above provides examples of maximum venting distances with various elbow combinations.

The Bradford White EverHot® TG model series has dedicated venting system components, which must be ordered separately. Review the “Venting System Installation Instructions” and the venting components later in this manual to determine the venting system layout and parts required. A Standard Vent Kit is available for outside through the wall venting installations. The Standard Vent Kit consists of: one 90° discharge adapter and one horizontal vent termination kit. If this type of vent installation is not possible, contact a venting supplier listed in this manual for additional venting components illustrated at the back of this instruction manual.

If the vent termination height above the water heater exceeds 5 feet (1.5 m), the condensate collector (integrated into the water heater’s vent connection on the top of the water heater) will be required to collect condensate from the vent pipe. The condensate collector has a 5/8” outside diameter male metal tube to connect to a condensate trap (loop) before being routed to a suitable drain.

VENTING SYSTEM INSTALLATION

Reference the preceding section and venting components illustrations at the end of this manual to determine the parts required for your particular venting system installation. The required venting component parts are available from the suppliers listed in this manual. Use the Venting System Installation Instructions supplied with the venting components for detailed instructions on putting together the venting components.

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Bradford-White Corp TG237I-N(X), TG-150I-N(X), TG-180I-N(X), TG-199I-N(X) Venting System Layout, Venting System Installation

TG-199I-N(X), TG-237I-N(X)A, TG-150I-N(X), TG237I-N(X), TG-180I-N(X) specifications

Bradford White Corp, a leader in water heating, offers a range of innovative water heaters, including the TG-180I-N(X), TG-237I-N(X), TG-150I-N(X), TG-237I-N(X)A, and TG-199I-N(X) models. These units are designed to deliver energy-efficient performance while ensuring reliability and ease of use for both residential and commercial applications.

One of the main features of the TG series is their robust design, which is built to withstand the rigors of daily use. These models are equipped with a durable steel tank that is glass-lined to prevent corrosion, ensuring a longer lifespan and reduced maintenance needs. The insulation system utilized in these water heaters is designed to minimize heat loss, contributing to overall energy efficiency.

In terms of technology, the TG series utilizes advanced gas burner systems that ensure optimal heating performance. The models feature an atmospheric venting system that is simple to install and maintain, offering great flexibility in terms of placement within a building. Additionally, the inclusion of Bradford White's signature Hydrojet® Total Performance System enhances overall efficiency by reducing sediment buildup, allowing for better heat transfer and increased performance.

Each model in this range is designed with user-friendly controls. The intuitive thermostat settings enable users to easily adjust the water temperature to meet their specific needs. Moreover, these water heaters incorporate safety features such as high-temperature limit switches and a temperature and pressure relief valve, ensuring safe operation.

Another important characteristic of these models is their compliance with industry standards. The TG series meets or exceeds the stringent guidelines set forth by the American National Standards Institute (ANSI) and the National Sanitation Foundation (NSF), demonstrating Bradford White's commitment to quality and safety.

Moreover, the TG series is designed to be environmentally friendly, incorporating features that support lower emissions and energy consumption. By using high-efficiency burners and improved insulation, these models contribute to reduced greenhouse gas emissions, aligning with global sustainability goals.

In summary, the Bradford White Corp TG-180I-N(X), TG-237I-N(X), TG-150I-N(X), TG-237I-N(X)A, and TG-199I-N(X) water heaters are engineered for efficiency, durability, and safety. With advanced features and technologies, they provide reliable hot water solutions for a variety of settings, making them an excellent choice for consumers seeking high-quality water heating options.