CFH
What does CFH stand for?
Cubic foot per hour
What does BTU stand for?
British Thermal Units
What does AHJ stand for?
Authority having Jurisdiction
What is the minimum gas pipe size for any appliance?
1/2 pipe
If you have a 40-gallon water heater and a range on a 65' piece of pipe what size is the pipe?
3/4 "
How do you find your CFH?
Divide BTU by 1000
From the video How many BTU's does a gas range use?
65,000
what do you use to check your gas connections for leaks?
soapy water or bird dog or like brand
What fitting is used to reconnect pipe back together in the middle the system.
union
If you have Refrigerator and a Range on a 115' piece of pipe what size is the pipe?
3/4
Approximately how many btu's does one cubic foot of gas produce?
1000 to 1100
How many btu's does the water heater use
35,000
What does every gas appliance need to have?
an individual shut off
What does a letter in an iso drawing indicate?
An individual appliance
If you have a domestic water heater (40,000btu) and a clothes dryer (35,000btu) on a 64' piece of pipe what size is the pipe?
3/4
On the table we just practiced on from the video a 1" piece of pipe at a 100' what is your max CFH?
195
How many btu's does the furnace use
150,000
Who is responsible for the gas meter?
City or Gas Company
If you have a pipe that does not line up with the hole, what fittings do you use?
2 - 90's (Swing joint)
If you have a 6 gallon per minute water heater, range and a BBQ on a 110' piece of pipe what size is this pipe?
1 1/2
On a 6" piece of pipe at 500' what is your max CFH
8150
How many btu's does the fireplace use
40,000
By code Where does the appliance shut off have to be located?
In the same room
The pipe section between the last branch and shut off is called what?
Outlet
If you have 3 clothes dryers, a 30-gallon water heater and 2 electric ranges on a 200' piece of pipe what is the pipe size?
1"