A customer wants to install a 10,000 btu unvented room heater in their bathroom. Would
you advice them to do so?
ANSWER
No
What type of appliances are constructed so that all air for combustion is derived directly
from the outdoors through one duct or pipe, and all flue gases are discharged to the out-
doors through another duct or pipe.
ANSWER
Direct vent
Residential propane appliances categories
ANSWER
Cat 1, 2, 3, and 4
Name plates are required when installing a ____ appliance
ANSWER
Listed
Unlisted room heaters are prohibited for use in bathrooms if the btu rating is ____ or less ac-
cording to code
ANSWER
6000 btu's
Unlisted, gas, food service counter appliances must be at least ____ from any combustible
material
1
, ANSWER
12 inches
Name two factors you must consider when selecting an appliance for a given application
ANSWER
Venting and combustion air
_____ is a measure of thermal resistance used in the building and construction industry
ANSWER
R value
What method of calculating needed combustion air is used when the air infiltration rate is
unknown
ANSWER
Standard calculation method
When determining the air infiltration rate using the KAIR method, the following must be de-
termined
ANSWER
Calculate ACH, size combustion air openings, determine building parameters
Which method is used when supplying additional air to a structure by creating two perma-
nent openings in a single room, one on top and one on bottom, each 12 inches from the ceil-
ing or floor
ANSWER
Two-openings method
The three sources for supplying additional air to a structure that is found to have an inade-
quate air supply are indoor air, outdoor air, and ____
2
you advice them to do so?
ANSWER
No
What type of appliances are constructed so that all air for combustion is derived directly
from the outdoors through one duct or pipe, and all flue gases are discharged to the out-
doors through another duct or pipe.
ANSWER
Direct vent
Residential propane appliances categories
ANSWER
Cat 1, 2, 3, and 4
Name plates are required when installing a ____ appliance
ANSWER
Listed
Unlisted room heaters are prohibited for use in bathrooms if the btu rating is ____ or less ac-
cording to code
ANSWER
6000 btu's
Unlisted, gas, food service counter appliances must be at least ____ from any combustible
material
1
, ANSWER
12 inches
Name two factors you must consider when selecting an appliance for a given application
ANSWER
Venting and combustion air
_____ is a measure of thermal resistance used in the building and construction industry
ANSWER
R value
What method of calculating needed combustion air is used when the air infiltration rate is
unknown
ANSWER
Standard calculation method
When determining the air infiltration rate using the KAIR method, the following must be de-
termined
ANSWER
Calculate ACH, size combustion air openings, determine building parameters
Which method is used when supplying additional air to a structure by creating two perma-
nent openings in a single room, one on top and one on bottom, each 12 inches from the ceil-
ing or floor
ANSWER
Two-openings method
The three sources for supplying additional air to a structure that is found to have an inade-
quate air supply are indoor air, outdoor air, and ____
2
