Choosing Gas Line Size For Your Gas Fire Pit | Montana Fire Pits 2018-05-31T15:43:46+00:00

Fire Pit Planning – Make Sure You Have The Correct Gas Line Size For Your Burner!

This is such an important part of making sure your fire pit works perfectly! It’s the number one mistake I see people make when putting together their own pit. Watch the video, read the charts and make sure your Fire Pit works great!

(PLEASE NOTE: You must consult with a local professional when determining your gas line size and length as we cannot answer specific questions about your gas line.)

EXTREMELY Important Gas Line Sizing Information

The biggest mistake that I see people make is not getting the right BTU burner for the length of hose they run. The charts below will help you figure out the burner size needed for your project.

  • LP Example: A machine with a burner that requires 440,000 BTU would need a 1″ for a 20′ long run.
  • LP Gas Flow is given in thousands of BTU/hr. – One Cubic foot of LP gas – 2516 BTU
  • This chart refers to low-pressure LP, after regulation. The standard nominal pressure at the burner for liquid propane gas is 11″ of the water column.
  • Pipe length must include an additional length for all fittings. Add approximately 5 feet of pipe per fitting.
Liquid Propane Gas Pipe Size Chart For Outdoor Gas Fire Pits
  • Natural Gas Example: A machine with a burner that requires 440,000 BTU would need a 1-1/4″ for a 20′ long run.
  • Natural Gas Flow is given in thousands of BTU/hr. – One Cubic foot of Natural Gas = 1000 BTU.
  • The nominal pressure at the burner for natural gas is 3.5″ of the water column. (typical machine supply 5″ – 7″)
  • Pipe length must include an additional length for all fittings. Add approximately 5 feet of pipe per fitting.
Natural Gas Pipe Size Chart For Outdoor Gas Fire Pits

What’s Next?

Now that you have an idea of what size burner you need for your project, take a look around at our options.

Explore Our Burners
More DIY Burner Info