CCS NFPA 211 & Local Regulations 2 — Questions and Answers
Question 1: According to NFPA 211, what is the minimum clearance required between a masonry chimney and combustible framing?
- 1 inch
- 2 inches (Correct answer)
- 3 inches
- 4 inches
Correct answer: 2 inches
NFPA 211 requires a minimum 2-inch clearance between masonry chimneys and combustible framing members.
Question 2: Under NFPA 211, a Type HT (high-temperature) factory-built chimney is required when serving which appliance?
- Gas furnace
- Oil boiler
- Wood-burning fireplace insert rated above 1,400°F flue gas temperature (Correct answer)
- Pellet stove
Correct answer: Wood-burning fireplace insert rated above 1,400°F flue gas temperature
Type HT chimneys are designed to handle high-temperature flue gases exceeding 1,400°F, such as those from certain wood-burning appliances.
Question 3: NFPA 211 requires masonry fireplace hearth extensions to extend at least how far in front of the fireplace opening for openings larger than 6 square feet?
- 12 inches
- 16 inches
- 20 inches (Correct answer)
- 24 inches
Correct answer: 20 inches
For fireplace openings larger than 6 square feet, NFPA 211 requires the hearth extension to project at least 20 inches in front of the opening.
Question 4: What does NFPA 211 specify as the maximum distance a connector can travel horizontally before entering the chimney?
- 50% of the vertical rise of the connector (Correct answer)
- 75% of the vertical rise of the connector
- Equal to the vertical rise of the connector
- Twice the vertical rise of the connector
Correct answer: 50% of the vertical rise of the connector
NFPA 211 limits horizontal connector runs to no more than 75% of the vertical rise to maintain adequate draft.
Question 5: Under local building codes aligned with NFPA 211, a chimney inspection is typically classified into three levels. Which level inspection is required when a property is sold?
- Level 1
- Level 2 (Correct answer)
- Level 3
- No inspection is required at property transfer
Correct answer: Level 2
A Level 2 inspection is required upon the sale or transfer of a property, as it includes accessible areas and video scanning of the flue.
Question 6: NFPA 211 defines 'listed' appliances or chimneys as those that have been:
- Approved by the local fire marshal only
- Evaluated by a qualified testing laboratory and found to meet specific standards (Correct answer)
- Registered with the EPA
- Inspected by a certified chimney sweep
Correct answer: Evaluated by a qualified testing laboratory and found to meet specific standards
A 'listed' product has been evaluated by a recognized testing laboratory (such as UL or ETL) and found to comply with applicable standards.
Question 7: According to NFPA 211, what is the required height of a chimney above a flat roof?
- 2 feet above any part of the building within 10 feet
- 3 feet above the highest point of roof penetration
- 4 feet above the roof surface
- 3 feet above the roof and 2 feet above any part of the building within 10 feet (Correct answer)
Correct answer: 3 feet above the roof and 2 feet above any part of the building within 10 feet
NFPA 211 requires chimneys to extend at least 3 feet above the highest point of roof penetration and 2 feet above any portion of the building within 10 feet.
CCS NFPA 211 & Local Regulations 2
According to NFPA 211, what is the minimum clearance required between a masonry chimney and combustible framing?