heat exchanger is _____.
a. the cooling fins around a stove pipe
b. a firebox
c. the chamber where heat is transferred through walls to air or water - ANSWER c
A vent is used for _____.
a. listed gas or oil bu
...
heat exchanger is _____.
a. the cooling fins around a stove pipe
b. a firebox
c. the chamber where heat is transferred through walls to air or water - ANSWER c
A vent is used for _____.
a. listed gas or oil burning appliances
b. solid fuel appliances, such as a wood stove
c. any gas furnace - ANSWER a
NFPA 211, Chapter 1, categorizes chimneys and vents according to: 1) the appliances they serve and 2) their maximum continuous flue gas temperature. The class of service is based on a maximum, continuous, appliance-outlet, flue gas temperature of not greater than
a. 1000*F
b. 2000*F
c. 500*F - ANSWER a
The B-Vents are a listed venting system usually made of metal pipe with an aluminum inner wall. They are usually a double-wall pipe with an air space. They are used for venting listed gas appliances with draft hoods and should be installed only according to manufacturer's instructions.
a. True
b. False - ANSWER a
Type BW - Vent is _____.
a. low clearance black wall pipe
b. B-Vent which can be installed in a stud cavity of a wall
c. direct vent piping used for fireplaces - ANSWER b
Not all fireplaces are suitable for a hearth stove installation. Hearth stoves should only be connected to _____.
a. prefabricated fireplace chimneys
b. class "A" stainless chimneys
c. properly constructed masonry fireplaces - ANSWER c
Unless an insert is listed otherwise, the resulting floor protection should extend _____.
a. 18" in front of the appliance
b. 12" in front of the appliance
c. 24" on either side of the appliance
d. 9" above the appliance - ANSWER a
A fireplace damper is usually located at the _____.
a. throat of the fireplace; the intersection of the firebox and the smoke chamber
b. between the firebox and the flue tile
c. top of the chimney
d. breast of the fireplace; the intersection of the smoke chamber and flue tile - ANSWER a
Factory built fireplaces consist of:
a. masonry crown
b. a firebox, lined with firebrick or some pre-cast material
c. a damper located where the firebox narrows to join the fireplace flue
d. a chimney which is attached immediately above the damper area
e. clay flue tile - ANSWER b, c, and d
A baffle is a metal plate located _____.
a. somewhere between the firebox and the stove flue collar. It helps achieve more complete combustion by slowing the passage of smoke and volatiles from the stove
b. in. a metal fireplace which is used to keep warm air from the home from escaping outside wasting energy
c. inside a wood stove smoke pipe to regulate draft - ANSWER a
Fireplace inserts are basically freestanding stoves which are specifically designed to fit, at least partially, inside a fireplace firebox.
a. true
b. false - ANSWER a
Furnaces. Both sides may have a plenum - an enclosure which serves as the gathering point for the distribution of air in the ducting system. (i.e. supply and return) Since the blower is always located on the _____.
a. return side, the products of combustion are not drawn out and into the air flow
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