Wood Stoves Intro

Question 1

The primary function of wood stoves is to:

Answer 1

Heat the room or home they are in.

Question 2

Wood stoves typically have ductwork.

Answer 2

False

Question 3

Wood stoves are typically used for space heating and may also be used for:

Answer 3

Cooking and recreation

Question 4

Wood stoves are more efficient than wood furnaces.

Answer 4

True

Question 5

List the four main components of wood stoves.

Answer 5

1. The cabinet or shell
2. The combustion chamber
3. The vent connector
4. Chimney

Question 6

Wood stove cabinets are usually made of __________________ or __________________.

Answer 6

Steel or cast iron

Question 7

The combustion chamber is usually made of __________________ or __________________.

Answer 7

Steel or cast iron

Question 8

The vent connector should never be made of:

Answer 8

Galvanized steel

Question 9

Convective stoves can usually be closer to combustibles than radiant stoves.

Answer 9

True

Question 10

The main difference between radiant and convective stoves is:

Answer 10

Radiant stoves emit heat primarily by radiation. Convective stoves emit heat primarily by convection. Convective stoves are cooler, safer and often have reduced combustible clearances.

Question 11

Describe the principle of advanced combustion wood stoves in one sentence.

Answer 11

Advanced combustion wood stoves have a secondary combustion chamber which slows exhaust gases and allows for increased heat transfer and more complete combustion.

Question 12

Describe the function of a catalytic combustor in one sentence.

Answer 12

They lower the ignition temperature of the exhaust gases, resulting in a more complete burn.

Question 13

How long do catalytic combustors typically last?

Answer 13

1-4 years.

Question 14

Describe four unique features of pellet stoves.

Answer 14

1. Use pellets instead of natural wood
2. Have a hopper to store pellets
3. Contain an auger which feeds pellets to the combustion chamber
4. Can be sidewall vented

Question 15

The two big safety issues with wood stoves are:

Answer 15

Chimney fires and combustible clearances

Question 16

List four common causes of chimney fires.

Answer 16

1. Poor quality equipment
2. Poor installation
3. Poor operation and maintenance
4. Poor fuel quality

Question 17

How far from combustibles should the side and rear walls of a wood stove be, assuming that it is not certified and the walls are not shielded?

Answer 17

48 inches, or 36 inches if walls are shielded

Question 18

How far should combustibles be from the front of an unlisted wood stove?

Answer 18

48 inches from front

Question 19

How far should the top of a wood stove be from a combustible ceiling (assuming it is an unlisted unit)?

Answer 19

60 inches from top

Question 20

How far should a single wall vent connector be from combustibles?

Answer 20

18 inches

Question 21

How far should a hearth pad extend out to the front, sides and rear of a wood stove?

Answer 21

18 inches from the front and 8 inches for sides and back.

Question 22

Describe a typical floor protection system where a wood stove is on a combustible floor, assuming that the stove legs are 4 inches long.

Answer 22

One row of blocks should be used, allowing air to flow freely through the blocks or, alternatively, two 24 gauge metal plates should be installed on noncombustible spacers.

Question 23

List two systems that can be used to reduce combustible clearance requirements.

Answer 23

1. 29 gauge sheet metal on noncombustible spacers set out one inch from wall.
2. Ceramic tiles or other noncombustible material attached to 29 gauge sheet metal backing on noncombustible spacers at least one inch from the walls.