Unconfined Space

A water heater in an unconfined space uses indoor air for combustion and requires at least 50 cubic feet for each 1,000 BTUH of the total input for all gas appliances. The table below shows a few examples of the minimum square footage (area) required for various BTUH inputs.

Table 2

 

 

BTUH

Minimum Square

Typical Room

Feet with

Input

with 8' Ceiling

8' Ceiling

 

 

30,000

188

9 x 21

45,000

281

14 x 20

60,000

375

15 x 25

75,000

469

15 x 31

90,000

563

20 x 28

105,000

657

20 x 33

120,000

750

25 x 30

135,000

844

28 x 30

 

 

 

IMPORTANT:

•The area must be open and be able to provide the proper air requirements to the water heater. Areas that are being used for storage or contain large objects may not be suitable for water heater installation.

•Water heaters installed in open spaces in buildings with unusually tight construction may still require outdoor air to function properly. In this situation, outside air openings should be sized the same as for a confined space.

•Modern home construction usually requires supplying outside air into the water heater area.

Confined Space

For the correct and proper operation of this water heater, ample air must be supplied for the combustion, ventilation, and dilution of flue gases. Small enclosures and confined areas must have two permanent openings so that sufficient fresh air can be drawn from outside of the enclosure. One opening shall be within 12 inches of the top and one within 12 inches of the bottom of the enclosure as shown in Figure 4.

The size of each opening (free area) is determined by the total BTUH input of all gas utilization equipment (i.e., water heaters, furnaces, clothes dryers, etc.) and the method by which the air is provided. The BTUH input can be found on the water heater data plate. Additional air can be provided by two methods:

1.All air from inside the building.

2.All air from outdoors.

Figure 4

12” maximum

 

 

Opening Locations-

 

 

 

 

 

 

Confined Spaces

 

 

 

 

 

 

 

 

 

Closet

 

 

 

 

 

 

 

 

 

 

Permanent

 

 

 

or

 

 

 

other

openings to

 

 

 

confined

the outside or

 

space

additional

 

 

 

 

rooms within the building

12” maximum

All Air from Inside the Building

When additional air is to be provided to the confined area from additional room(s) within the building, the total volume of the room(s) must be of sufficient size to properly provide the necessary amount of fresh air to the water heater and other gas utilization equipment in the area. If you are unsure that the structure meets this requirement, contact your local gas utility company or other qualified agency for a safety inspection.

Each of the two openings shall have a minimum free area of 1 square inch per 1,000 BTUH of the total input rating of all gas utilization equipment in the confined area, but not less than 100 square inches (Figure 5).

Confined

Space

Permanent

Openings

1 square

inch/1000

BTUH

(minimum

100 sq. In.)

Figure 5

All Air from Inside Building

Confined Space Installation

8

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Whirlpool 89263, BFG1J5040T3NOV 5K, 6510374, W10100870 Unconfined Space, Confined Space, All Air from Inside the Building
Page 7 Page 9

W10100870, 89263, SG1J4040T3NOV 5K, BFG1J5040T3NOV 5K, 6510374 specifications

Whirlpool is a leading name in the home appliances industry, known for its innovative technology and user-friendly designs. Among its extensive product range, various models stand out for their unique features and capabilities. Such models include the Whirlpool 6510374, BFG1J5040T3NOV 5K, SG1J4040T3NOV 5K, 89263, and W10100870, each designed to enhance functionality and convenience in kitchen environments and more.

The Whirlpool 6510374 is a versatile appliance often used for its high efficiency and reliable performance. It includes features like adjustable shelves, which provide flexibility in arranging your items to maximize storage space. The smart cooling technology ensures uniform cooling throughout the unit, preserving the freshness of perishables for extended periods.

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The SG1J4040T3NOV 5K model enhances user convenience with features such as a frost-free design, which eliminates the need for manual defrosting, saving both time and effort. This feature, combined with its spacious interior, makes it highly desirable for storing large quantities of food.

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In conclusion, the Whirlpool 6510374, BFG1J5040T3NOV 5K, SG1J4040T3NOV 5K, 89263, and W10100870 each present an array of features that enhance functionality, efficiency, and user experience. Whirlpool continues to push boundaries in appliance design, ensuring that each model is a safe, reliable, and smart choice for consumers worldwide. These models reflect the brand’s commitment to quality, innovation, and customer satisfaction, making them an essential part of any modern kitchen.
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