# What size natural gas line do i need?

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Video answer: Natural gas pipe sizing

## Top best answers to the question Â«What size natural gas line do i needÂ»

- For example, in most cases a mainline, the principal pipeline that delivers natural gas, will require line pipe that is
**around 16 to 48 inches**in diameter.

Video answer: Sizing natural gas and lp propane gas pipe- longest length

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Size. Most natural gas pipes run up to a nominal size of four inches, although you can get pip thatâ€™s up to eight inches in diameter. When you see the flow for natural gas in pipes, these donâ€™t refer to copper pipes. The specification for these is going to be different, with different figures. Obviously, the greater the nominal size of natural gas pipes, the greater the gas flow through the pipes.

This one covers wrought iron pipe sizing for natural gas systems. This method is the branch length method (402.4.2) and conforms to the IFGC 2009 code book....

arriving at the appliance. The gas line must be sized 1/3 larger to compensate for elevation. Therm and Decatherm Before we get into the actual calculations used to compute the correct gas line size, a word (or two) is in order concerning the measurement of natural gas. Most gas bills measure gas in Therms or Decatherms. A Therm is 100,000 BTUs of heat. As we just learned,

To obtain the cubic feet per hour of gas required, divide the input of the appliances by the average Btu (kW.h) heating value per cubic foot of the gas. The average Btu per cubic foot is 1,100. Longest Length Method. The size of each section of gas piping shall be determined using the total

Minimum Size of Piping Outlets: The size of the supply piping outlet for any gas appliance shall not be less than one- half (1/2) inch. Pipe Sizing Methods: Where the piping size is to be determined using either of the methods below, the minimum diameter

The length of pipe from the gas meter to the farthest appliance (which is the grill) is: (A,B,C,E,H,J,K,L OR 8+10+8+9+20+14+14+2) 85 feet. There are no 5' steps in the length chart so you have to go to the next higher column which is 90 feet. Once the longest run is determined, you must stay in that column for all other appliances.

Sizing of Piping Sections. To determine the size of each section of pipe in any system using piping specific table*, and proceed as follows: (1) Measure the length of the pipe from the gas meter location to the most remote outlet on the system. (2) Locate that total length in the left-hand column of sizing table*, or the next longer distance where

Supply run at 20 ft Long that is Black Iron Pipe. [ressure 7-14 incches water column 3/4 inch pipe is suitable for 326 000 btuh. Copper pipe would be different. 10 ft supply run would run at 3/4...

If you are using black iron pipe and not CSST or plastic underground, normally I would run a 1-1/4" line for that unit. This is assuming that the gas pressure there is between 5-7" (natural gas) of water and not elevated.

Step 1, Locate the gas meter. The gas meter is either near the garage or at the front of your house. It will either be under your house, in a cabinet, part of a multiple meter, or underground. The main gas valve is located at the gas meter. [1] X Research sourceStep 2, Find the main valve.On the gas meter, there are two pipes. One comes into meter from the gas supplier, and the other goes from the meter into your house. The main valve is located on the pipe that comes in from the ...