Chapter 8: Chimney and Vents Flashcards Preview

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Flashcards in Chapter 8: Chimney and Vents Deck (30)
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1

Appliances other than gas shall be vented in accordance with the manufacturer's instructions and NFPA _____________.

211

2

Equipment not required to be vented includes __________.

Listed Ranges

3

Gas utilization equipment requiring venting shall be permitted to be vented by means of a mechanical draft system either forced or induced draft design except for ___________.

Incinerators

4

A listed vented wall furnace would use __________ vents.

Type B-W

5

No portion of a venting system shall pass through a ____________ or furnace plenum.

Circulating air duct

6

Factory-built chimneys used to vent appliances that operate at ________ pressure shall be listed for such application.

Positive

7

A chimney for residential-type a low-heat gas utilization equipment shall extend at least _________ feet above the highest point where it passes through a roof of a building.

3 feet

8

A chimney for medium-heat equipment shall extend at least ________ feet higher than any portion of any building within _________ feet.

10 feet, 25 feet

9

A gas vent passing through a roof shall extend ________ a roof flashing, roof jack, or roof thimble and terminate with a _______.

Entirely through, listed termination cap

10

Any angle greater than ________ degrees from the vertical direction is considered _________.

45, horizontal

11

The total horizontal distance of a vent plus the horizontal vent connector shall not exceed ________ percent of the vertical height of the vent.

75%

12

Vents serving Category I fan-assisted appliances shall be installed in accordance with the _______________ or other approved engineering methods.

installation instructions and Section 803

13

A 14-inch diameter gas vent extending through a metal flashing less than 8 feet from a vertical wall must extend at least ________ feet above the vertical wall.

2 feet

14

a Type B or Type L gas vent shall terminate at least _______ feet in vertical height above the highest connected draft hood or flue collar.

5 feet

15

A Type BW gas vent shall terminate at least ________ feet above the bottom of the wall furnace.

12 feet

16

A gas vent extending through an outside wall shall not terminate adjacent to the wall or below _____________.

Eaves or parapets

17

For sizing gas vents for Categories II, III, IV appliances, the gas vent shall comply with ____________.

The equipment manufacturer's instructions

18

A common vent serving Category I appliances in multistory installations is permitted, providing the vent system is designed and installed in accordance with ________________.

Approved engineering methods and this code

19

Single-wall meter vent pipe shall not be used ____________ for venting gas appliances.

Outdoors in cold climates

20

Single-wLl metal pipe shall used to vent gas appliances shall not originate in any _____________.

Unoccupied attic or concealed space

21

A mechanical draft venting system shall terminate at least ___________ feet above any forced air inlet within 10 feet.

3 feet

22

A mechanical drafting venting system, of other than direct-vent type , shall terminate at least __________ feet below our horizontally from a door, operable window, or gravity air inlet into any building.

4 feet

23

The bottom of any mechanical draft or direct-vent terminal shall be at least _________ inches above grade.

12 inches

24

A vent connector shall be made of noncombustible ___________ material capable of withstanding the vent gas temperature produced by the gas utilization equipment.

Corrosion-resistant

25

Vent connectors shall be covered with ___________.

Insulation

26

A vent connector shall be installed so as to ___________ and construction features that create excessive resistance to the flow of the flue gases.

Avoid turns

27

A vent connector shall slope upward at a slope non less than ___________ inch per foot.

1/4 inch

28

Vent connector supports shall be _________.

Adequate for the design and weight of the material

29

A vent connector shall not pass through any ceiling, floor, or _________.

Fire-resistance-rated-wall

30

Through-the -wall vents for Category IV and noncategorized condensing appliances shall not terminate over ___________.

Public ways