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24 Cards in this Set
- Front
- Back
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What is "B" vent referred to in the vent sizing tables? What is the maximum temperature that b vent can handle? |
Double wall 470 degrees Fahrenheit |
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What is C vent referred to in the sizing tables? |
Single wall |
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When would you use A vent? |
For high temperature and venting oil or solid fuel |
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What type of material is type B H venting made of? What are the temperature ratings of that material? |
PVC up to 65 degrees C CPVC up to 90 degrees C |
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What does LTVH refer to? |
Least total vent height |
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Can a single fan assist Appliance be vented into a chimney |
No |
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How much would you de-rate the values in the book when using a corrugated metallic chimney liner? |
20% |
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When is a chimney considered to be exterior? |
When one or more sides is exposed to the outside |
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What is the minimum vent height required if the vent size is reduced from the flue collar size? |
10 ft |
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How many elbows are assumed when the vent connector lateral length is greater than 0? |
2 |
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May a fan assisted Appliance beat individually vented into a tile lined masonry chimney? |
No |
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When common vented appliances are located on the same floor how is the total available height determined? |
The height is measured from the highest draft Hood or the flue collar to the level of the cap or terminal |
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Is linear interpolation of table entries allowed when desired values are not listed? |
Yes |
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Is extrapolation be on the table entries allowed when desired values are not listed? |
No |
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When the Code table shows more than one vent size acceptable which is preferred? |
The smallest |
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Installing an oversized venting system may result in condensation being produced by the products of combustion true or false |
True |
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The products of combustion in a gas fired kitchen range are vented directly into the room true or false |
True |
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Sealed, separated, or direct vent appliances get all of the required air for combustion from within the room or space that the appliances in true or false |
False |
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Type c vent will require how much clearance from combustibles |
6 in |
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A combustible material is protected by a piece of sheet metal spaced out 1in, using non combustible spacers. Based on this installation how much clearance is required from a single wall vent to a combustible? |
2 inches |
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Type BW vent must terminate a minimum of how many feet above the floor? |
12 feet |
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A vent from an appliance must not terminate within how many feet of a mechanical Air Supply to a building |
6 feet |
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Flue gases will begin to condense at a temperature of approximately |
127 degrees Fahrenheit |
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The minimum clearance from combustibles for a type A single wall chimney is |
18 in |
