ICA Module 2 Section 3 Heating

Question 1

NFPA stands for:

Answer 1

National Fire Proof Association

Question 2

Forced air combustion heating is the least common. T/F

Answer 2

False-is the most common

Question 3

High efficiency furnaces are completely sealed. T/F

Answer 3

True

Question 4

Forced Air Efficiencies:
Low=
Mid=
High=

Answer 4

Low= open burners, old units, natural draft (60-65% efficient)
Mid= induced draft from small fan (80-83% efficient)
High= usually sealed chambers (90% efficient)

Question 5

Forced air types of furnaces include:

Answer 5

Up flow, Down flow (counter flow), Horizontal flow

Question 6

Gas fired units use B-Vent T/F

Answer 6

True

Question 7

Oil fired units use L-Vent T/F

Answer 7

True

Question 8

Furnace Clearances:
How far to service:
How far from hatch in attic:
Walkway to unit:
Platform size in front of service side:

Answer 8

How far to service: 30”
How far from hatch in attic: 20’
Walkway to unit: 24”
Platform size in front of service side: 30”x30”

Question 9

When using outdoor air a furnace door must have ___ small opening.

Answer 9

1

Question 10

Return air intake grille must be ______ feet from combustibles.

Answer 10

10

Question 11

Vent connectors rise ____” per foot

Answer 11

1/4”

Question 12

Larger vent connectors should be below smaller where there are 2 vent connectors. T/F

Answer 12

True

Question 13

Vent Connector Clearances from Combustibles:
Single Wall Vent=
Double Wall Vent=

Answer 13

Single= 6”
Double Wall B Vent = 1”

Question 14

B Vent has dimples & single wall does not. T/F

Answer 14

True

Question 15

White deposits on vent tubing is caused by:

Answer 15

condensation

Question 16

Humidifiers are excluded for inspectors. T/F

Answer 16

True

Question 17

Inspectors must report furnaces that are near the end of life, which is about 30 years. T/F

Answer 17

False. Inspectors must report furnaces that are near the end of life, which is about 20 years.

Question 18

A yellow flame means ____ combustion.

Answer 18

Incomplete

Question 19

Types of Ductwork include:

Answer 19

Steel (most common), Rigid Fiberglass Board, Flex Duct, Plastic, Asbestos

Question 20

Boilers generally last:

Answer 20

40-60 years

Question 21

Gravity boilers work with no moving parts. T/F

Answer 21

True

Question 23

Transite is an ______ material.

Answer 23

asbestos

Question 24

3 types of boilers:

Answer 24

Circulated, Gravity, Steam

Question 25

Glass tubes on side of boiler means it is a steam boiler, and if there is a pump, it’s a circulated boiler. T/F

Answer 25

True

Question 26

Hartfuel loops goes together with a steam boiler (2 peas in a pod) T/F

Answer 26

True

Question 27

Direct Vent Space Heater Clearances:
Top=
Both Sides=
Clear in from?

Answer 27

Top= 36”
Both Sides= 12”
Clear in from?= 2’

Question 28

A wall heater must be ___ inches away from the edge of a door.

Answer 28

12”

Question 29

Space heating are single room heaters, and may be:

Answer 29

propane, gas, electric

Question 30

Different Fireplaces include:

Answer 30

alcohol gel, gas logs, gas starting, wood

Question 31

Wood stoves may be:

Answer 31

stand alone, hearth mount, inserts

Question 32

Pellet stoves burn:

Answer 32

wheat seeds, cherry pits, most burn compression wood, corn pellets

Question 33

Wood stoves cause over 100 fires annually. T/F

Answer 33

False 5,000

Question 34

Stoves should sit on a non-combustible hearth and extend 18” out, 8” on sides & rear. T/F

Answer 34

True

Question 35

Single wall stove pipe needs ___ inch clearance all the way around.

Answer 35

8”

Question 36

Double wall stove needs ___inch clearance al the way around.

Answer 36

6”

Question 37

How much clearance is required from the top of a stove?

Answer 37

5 feet

Question 38

Gas fireplaces & inserts require B-Vent with 1” clearance all around. T/F

Answer 38

True

Question 39

Wood fireplaces & stoves require a vent __” clearance all around.

Answer 39

2

Question 40

Pellet stoves require PL vent 3” clearance all around. T/F

Answer 40

True