Exam 33: History, Theory, and Function of a Fireplace and Chimney

The area under the ash dump is formed with masonry into a chase or squared hole that leads directly to the end of an air tube.

A good circulating-type heater is only about one-third as efficient as a working fireplace.

A standard _____ is installed in the center forward section of the hearth.

When the air coming down the chimney reaches the smoke shelf directly behind the damper, the air is deflected out into the room to be heated.

Only masonry materials should be used in constructing a chimney that serves as a fireplace.

Basement fireplaces were rare until about 1950.

_____ is a term for the current of air created by the variation in pressure resulting from differences in weight between the hot gases in the flue and the cooler air outside the chimney.

Tests have shown that about five times the amount of air required for good ventilation can be drawn into the room by operating a fireplace.

Flashing around a chimney should not be made of _____

The _____ loses less heat up the chimney than older types.

A dummy flue can be added between two flues to balance out the top of the chimney.

The _____ is a brick ledge laid level with the bottom of the damper.

Regardless of whether it is a conventional masonry fireplace, Rumford design, or metal heat-form circulating fireplace, the concept of draft and parts of the fireplace remain the same.

The Rumford design increased efficiency and heat output of the fireplace.

Benjamin Franklin is considered to be the father of the traditional or conventional form of fireplace design and construction in the Chaptered States.