Natural Gas Fire Pit -- Help Needed


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Old 05-04-15, 03:56 PM
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Natural Gas Fire Pit -- Help Needed

Hi all. i am in the process of rebuilding my gas firepit and am looking for some tips and knowledge to help me succeed. The NG firepit i am running is ok, but i want to use fire glass instead of lava rocks and when i am making the switch, i am going to rework the piping to hopefully get me a much bigger flame.

Items to reference.
The fire pit is 32" in diameter.
The fire pit ring i have now has 1 - 12" ring.
When i installed a pool 4 years ago, i had my gas meter upgraded and a 400k BTU heater installed. The company who installed the gas line for the heater installed 120' of 1.5" gas line (1.5" mpt x 1.5" IPS) directly from my upgraded meter to the pool equipment. After that was completed, we tapped into it and i had 40' of 1" gas line (1" MPT x 1" IPS) ran to my fire pit.

Here is the bottleneck. The 1" line is connected on both ends of the run by 3/8" connectors, 3/8" hoses, and a 3/8" input gas ring.

What are your recommendations for making my gas fireplace all that it can be? i want the biggest flame possible.

Change all the fittings, hoses, and ring to 3/4"? is there a 1" setup or is that unrealistic? anything else i can do to up the pressure?
 
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Old 05-04-15, 04:00 PM
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oh, i was thinking about upgrading to a 24" ring also. has a 24" & 12" ring attached.
 
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Old 05-04-15, 04:21 PM
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The company who installed the gas line for the heater installed 120' of 1.5" gas line (1.5" mpt x 1.5" IPS) directly from my upgraded meter to the pool equipment. After that was completed, we tapped into it and i had 40' of 1" gas line (1" MPT x 1" IPS) ran to my fire pit.

Here is the bottleneck. The 1" line is connected on both ends of the run by 3/8" connectors, 3/8" hoses, and a 3/8" input gas ring.
Hello medford... Howell here...

Ummm what is the btu of the pool heater?

Whats the btu's of the fire ring burner?

I would say the 3/8 on the pool side is the bottle neck but you may have other issues..

I need BTU's to calculate.. I can do the rest with that info...
 
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Old 05-04-15, 04:36 PM
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hello howell!!!!! enjoying that nice weather i am sure! 90 this weekend!

i just went out and looked at the heater. the pool heater is 400,000 btu.

also, i want to buy a new fire pit ring so what should i look for? any suggestions? i am looking for a 24" ring!
 
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Old 05-04-15, 04:41 PM
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Old 05-04-15, 05:24 PM
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120 ft of 1 1/2 " pipes supports 550K btu...

1" off of there supports 175K btu...

3/8" supports 24K btu and that sounds like the issue... The gas cant get through that 3/8 pipe....
 
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Old 05-04-15, 05:26 PM
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The 1" line is connected on both ends of the run by 3/8" connectors, 3/8" hoses, and a 3/8" input gas ring.
What type of lines are these?
 
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Old 05-04-15, 05:41 PM
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the 1" line looks like it has a metal casing and a yellow tracer wire. The 3/8" line that goes from the 1" line to the firepit is a steel flexible line.
 
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Old 05-06-15, 08:28 AM
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Ok, so I changed out all the fittings at the pool equipment side of the gas line to 1". Now I have 120' of 1.5" gas line running to the pool heater from the upgraded meter and 40' of 1" gas line running from the pool equipment to the fire pit. At the fire pit, I changed the fittings to 1" and added a reducer to 3/4". I then have a 3/4" hose running directly to the inlet of the fire pit ring (I need to buy a ring)

My question is: What type of 24" fire pit ring should I buy? What should the maximum BTU be? I want to get the maximum flame possible. I have been looking at high capacity rings but need help making sure I buy the right one!

I found this:
http://www.amazon.com/Round-Natural-.../dp/B007ZT8QBO

or this:

24-Inch 304 Stainless Round Double Natural Gas Fire Pit Ring : Ultimate Patio

suggestions are appreciated. thanks.
 
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Old 05-08-15, 04:22 PM
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So I went ahead with a 24" hc ring.... have not heard from anyone but had to drop the hammer. I will let u all know how it turns out
 
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Old 05-16-15, 03:49 PM
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Success. Am able to achieve a 6 foot flame but I keep it at 2-3 foot.
 
 

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