Fireplaces, Chimneys and Solid-Fuel Burning Appliances Flashcards

What is the typical minimum clearance for combustible mantels and trim from the fireplace opening?

Answer: Per code, combustible material within 6 inches of the opening is prohibited, with projections limited at greater distances

Combustibles may not be within 6 inches of the opening, and projecting trim is limited by distance from the opening.

Which chimney type is designed for solid-fuel appliances and rated to withstand chimney fires?

Answer: Class A (all-fuel) chimney

Class A, or all-fuel, chimneys are listed to handle high temperatures and chimney fires.

A pellet stove is typically vented using what?

Answer: Special pellet vent approved for the appliance

Pellet stoves use listed pellet vent pipe, usually with a fan-forced exhaust and sealed joints.

Why is a sloped, inadequately sealed flashing at the chimney-roof junction a concern?

Answer: It allows water intrusion into the structure

Failed chimney flashing is a common source of roof leaks and hidden water damage.

What is the primary purpose of a hearth in front of a fireplace?

Answer: Protect the combustible floor from sparks and embers

A noncombustible hearth extension protects combustible flooring from falling embers and radiant heat.

Tight modern construction may cause which common fireplace operating problem?

Answer: Insufficient combustion air leading to backdrafting

Airtight homes with exhaust fans can depressurize, pulling combustion gases back down the flue.

When an inspector cannot view the interior of a flue, which is the BEST recommendation?

Answer: Recommend a Level 2 evaluation by a qualified chimney professional

Limited visibility warrants further evaluation, typically a camera scan by a certified chimney professional.