CCS Chimney Repair & Installation 3

Question 1

What is the correct procedure when relining a chimney with a flexible stainless steel liner that serves a gas appliance?

Accepted Answer

Use Type 316 or AL29-4C stainless steel liner

Answer

Type 316 or AL29-4C stainless steel is required for gas appliance liners because they resist the acidic condensate produced by gas combustion.

Question 2

When installing a wood stove insert into an existing masonry fireplace, what is required by code?

Accepted Answer

A stainless steel liner running from the insert collar to the top of the chimney

Answer

A continuous stainless steel liner from the insert collar to the chimney top is required to safely vent combustion gases and prevent leakage.

Question 3

What does 'spalling' refer to in chimney masonry?

Accepted Answer

Flaking or breaking of brick or stone faces due to moisture and freeze-thaw cycles

Answer

Spalling is the flaking or chipping of the face of bricks or stones caused by water penetrating the masonry and expanding during freeze-thaw cycles.

Question 4

What is the minimum height a chimney must extend above the roof peak according to the '10-2 rule'?

Accepted Answer

2 feet above any part of the roof within 10 feet horizontally

Answer

The 10-2 rule requires the chimney to extend at least 2 feet above any part of the roof within 10 feet measured horizontally.

Question 5

What is the recommended approach for repairing a severely deteriorated smoke chamber?

Accepted Answer

Parge coat with a heat-resistant refractory mortar or insulating smoke chamber coat

Answer

A parge coat of refractory mortar or specialized insulating smoke chamber coating restores the integrity and efficiency of a deteriorated smoke chamber.

(CCS) Certified Chimney Sweeper Practice Test

(CCS) Certified Chimney Sweeper Practice Test

CCS Chimney Repair & Installation 3