Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
27 Cards in this Set
- Front
- Back
Minimum boiler clearances vertically |
18 in |
|
Minimum boiler clearance for sides and rear |
18 in |
|
Minimum boiler clearances from the front |
48 in |
|
When can a generator installed for the production of carbon dioxide in a greenhouse take its combustion air from inside the greenhouse |
When the rate of combustion does not exceed 20 BTU H per foot cubed the greenhouse volume and the concentration of CO2 does not exceed 5000 PPM and the concentration of Co does not exceed 35 PPM |
|
What may be used to connect the dryer exhaust and a rigid moisture duct |
A certified flexible foil non-combustible type duct |
|
Dryer moisture exhaust duct termination distances |
Not less than three feet from a pressure regulator vent terminal and not less than 10 feet from a fresh air intake |
|
A moisture air duct shall not be secured with |
Screws |
|
Can you vent a moisture in exhaust duct into vent connector vent or chimney |
No |
|
High temperature limit control maximum setting for a gravity furnace |
350° Fahrenheit or 175 degrees Celsius |
|
High temperature limit control maximum setting on a forced air furnace |
250° Fahrenheit or 120 degrees Celsius |
|
Minimum clearance from the top of a central furnace |
1 in |
|
Minimum clearance from combustibles cereal for the jacket sides and rear of a central furnace |
6 in |
|
Minimum clearance distance from the front of a central furnace |
24 in |
|
Can you install a floor furnace |
No |
|
Where shall a direct fired make-up air heater not be used to supply makeup are |
To an area where sleeping accommodation is provided |
|
Max length of a gas hose used to connect a infrared tube heater |
36 plus or minus 6 in |
|
A room heater in a bathroom shall be of what type |
Direct vent |
|
When a room heater is installed in a room where sleeping accommodations provided or in a public area it shall |
Be of the automatic temperature control type, be equipped with a pressure regulator, have 100% safety shut-off control, and be vented |
|
Minimum distance of a pool heater to a property line |
18 in |
|
Can a pool heater be installed beneath any structure including a deck |
No |
|
Where should offended tube type pool heater be installed |
Either Outdoors or in an enclosure that is not normally occupied and does not directly communicate with occupied areas |
|
Minimum clearance from combustible material for any under fired storage type water heater shall be how many inches |
2 in |
|
Minimum clearance for any type of water heater other than an under fired storage type water heater shall be how many inches |
6 in |
|
When installed in a garage what is the minimum clearance that shall be maintained between the base of a heater and the garage floor |
8 feet |
|
Minimum clearance distance for a bracket or pendant gas light fixture from above |
18 in |
|
Minimum clearance for all sides of a bracket or pendant gas light fixture |
5 in |
|
Can you install a gas range in a bedroom |
No but you may install one in a bed sitting room |