VENTING CLEARANCES

18” minimum in all directions from any obstruction that may interfere.

18” minimum from the ground and 12” from ceiling overhangs. Figure 4.

The direct vent terminal shall terminate at least 3 feet above any forced air inlet located within 10 feet. Figure 5.

9” minimum horizontally from or above any door, window or gravity air inlet into the building (50,000 BtuH input or less.)

12” minimum horizontally from or above any door, window or gravity air inlet into the building (over 50,000 BtuH input).

12” minimum below any door, window or gravity air inlet into the building (50,000 BtuH input or less).

18” minimum below any door, window or gravity air inlet into the building (over 50,000 BtuH input).

18” minimum from other gravity or natural appliance outlet vents when directly above or 135° to either side of center line. Figure 6.

36” minimum from any outlet vents when directly below or 45° to either side of center line. Figure 7.

36” minimum in all directions from any other forced air appliance outlet vent. Figure 7.

The location selection must provide clearances for servicing and proper operation of the water heater. Figure 8.

Vent termination must not be within 4 feet of any items such as gas meters, gas valves or other gas regulating equipment.

FIGURE 4

WARNING

Vent termination must not be within 4 feet of any items such as gas meters, gas valves or other gas regulating equipment.

OPTIONAL WIRE GRILL

When the water heater vent cap is low enough to be touched accidentally, or is accessible to small children, installation of a protective vent cover is recommended. Some local codes may require a vent cap cover. Figure 9 shows the optional wire vent cap protector available from the water heater manufacturer.

A wire mesh chain link fence (as shown in Figure 9) may be used instead of the factory cover. Care should be taken to maintain adequate ventilation around the vent cap. If a chain link fence is installed, it must not be used as a storage area for items that may block proper ventilation.

FIGURE 5

FIGURE 6

FIGURE 7

FIGURE 8

FLUE EXTENSIONS

There are three optional extension kits available. Any combination of the three kits can be chosen; however, only one kit can be used vertically and/or horizontally. (See Figures 10 and 11.)

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A.O. Smith FDVT, SDV owner manual Venting Clearances, Optional Wire Grill, Flue Extensions

SDV, FDVT, FDV specifications

A.O. Smith is a leading name in the water heating industry, known for its innovative products and commitment to quality. Among its extensive lineup, the FDV, FDVT, and SDV series stand out due to their advanced features and technologies designed to enhance performance and efficiency.

The FDV series represents a revolution in traditional water heating solutions. These direct vent water heaters are designed to provide hot water on demand while minimizing energy consumption. The FDV models utilize a dual venting system, allowing for the efficient expulsion of combustion gases outside the home while drawing in fresh air for the combustion process. This design increases efficiency by ensuring optimal combustion and improves safety by reducing the risk of indoor air contamination.

The FDVT series builds upon the innovative features of the FDV, integrating a tankless design that provides unlimited hot water. This makes it an ideal choice for households with higher hot water demands. The FDVT models use high-efficiency burners and advanced heat exchangers to deliver hot water quickly and consistently, adapting to varying flow rates. They are also equipped with intelligent control systems that monitor water usage patterns and adjust operation accordingly, optimizing energy efficiency without sacrificing performance.

The SDV series caters to those looking for a reliable and efficient storage tank water heater. With a robust construction and reliable design, these water heaters are built to last. The SDV models are designed with high-quality insulation to minimize heat loss, making them energy-efficient options for storing hot water. Additional features include built-in safety mechanisms, such as temperature and pressure relief valves, ensuring safe operation at all times.

A.O. Smith's commitment to innovation is evident in their use of cutting-edge technologies across these series. Both the FDV and FDVT models incorporate sophisticated electronic controls, enabling features like scheduling and remote access for greater convenience. They are compatible with smart home systems, allowing users to monitor and manage water heating remotely.

In terms of energy efficiency, models within these series are designed to exceed industry standards, often qualifying for energy rebates and incentives in various regions. With features such as modulating burners, they adjust the energy input based on demand, significantly reducing operational costs.

Overall, A.O. Smith's FDV, FDVT, and SDV series represent leading-edge solutions in water heating, combining efficiency, safety, and advanced technology to meet the diverse needs of modern households. Whether seeking endless hot water or reliable storage solutions, these series offer unparalleled options that prioritize performance and sustainability.