Propane Fire Pit

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A simple modification I made to an old fire pit I had. It's nice to sit around the fire without the smoke and cleanup and on snow days it's great to warm up the hand during playtime.

Step 1: The Fire Ring

I made the fire ring from 1/2" copper pipe and fittings.

1.  I used 5  elbows,  3  t-pieces  and  one 1/2' female fitting to connect to a male brass air quick coupler.

2.  The first fire ring I made was  small and the nozzles to big. I made the ring  bigger and found that 1/16" nozzle holes work well ( I did have an air mixer on, But found it gave me a smaller bluer flame removing it gave a nice big yellow - orange flame). TIP: Nice video on what a flame is

http://www.youtube.com/watch?v=5ymAXKXhvHI


3.  All the fittings are soldered on with the standard flux and solder for water pipes (I have not had any problems with that yet)

4.  Using a hole saw I cut a hole in the bottom of the fire pit and installed the fire ring through it and used some aluminum foil to seal up the hole.

5.  Next I added some sand up to the bottom of the fire ring and then the lava rocks.

Step 2: The Propane Pipe.

I wanted the Fire pit to be somewhat portable so I used quick couplers and flexible pipe.

1.  The fire ring is held to the fire pit frame with a hose clamp.

2.  I took a propane regulator and added a female quick coupler to it. To the hose a female on one end and a male to the other.

3.  I used an old garden hose reel box with the reel drum removed to hide the propane tank.

4. I also put the flexible pipe through some PVC pipe to protect it from the sun and other damage ( this is just where the flexible pipe is exposed ).

To light the fire pit:
1. With the propane CLOSED squirt some fire lighter fluid over the fire ring and up the side of the fire pit and light it.

2. With flames in the fire pit SLOWLY open the propane valve, make sure the propane ignites.


I have been using this fire pit since the spring and have had no problems.

I recently changed the fire pit stand to  "retaining wall blocks" this lowered the fire pit to get more heat when we are seated.
 
BE SAFE and enjoy.

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    29 Discussions

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    brianfss

    5 years ago on Introduction

    I like your lightening method. It's nice not risking your eyebrows by having a big dose of propane build up before lighting.
    Thanks for the cool build

    2 replies
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    wynrol

    4 years ago on Introduction

    Really great post and my next project. You mention soot because you dont have an air mixer. What is an air mixer? Thanks

    1 reply
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    JayF49wynrol

    Reply 2 years ago

    An air mixer is where the propane squirts from the orifice at the end of the flexi-tube into a larger tube that leads to the actual burner. There is often an adjustment flap there to control air-fuel mix. It is also the place that certain spiders just love to build webbing, so make sure you check that area in the spring before you try to fire up your grills.

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    aauxier

    5 years ago

    I work in the propane business and this is not safe at all. You cant make these kinds of things on your own unless your qualified to do so.

    4 replies
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    JayF49hitnrun

    Reply 2 years ago

    If you don't get your connections pretty much leak-proof, the thing will blow up from a stray spark, such as you petting a cat or dog then touching the rig. It was a cat, I have the scars to prove it happens.

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    gwroberaauxier

    Reply 4 years ago on Introduction

    Could you let us know what is dangerous? I assume the quick connects may leak propane. I was also thinking of repurposing a gas grill into something like this, so the guts of the system were "factory".

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    We replaced an old stainless steel fire ring with one of these. http://www.thefirepitstore.com/warming-trends-crossfire-manual-lit-system-with-a-180k-btu-natural-gas-burner-and-plate-mls180ng/ Guaranteed for life!!

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    I have more of a question. Does the distance from the tank to the fire pit make a difference? Do you have to use an air mixture?

    1 reply

    Yes...contact a gas guy or a plumber and find out what your water table pressure is. They will tell you the max BTU you can get with your setup.

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    MartinMakesdalehopper

    Reply 3 years ago on Introduction

    It's called a "Kentucky stick chair" Google and Youtube have many plans and instructions. Hope this helps.

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    MartinMakes

    4 years ago on Introduction

    The first 2 images are of an air mixer on a BBQ grill, the secont 2 images are of the one I made when I was testing the fire pit flame. The first of the 2 images is what it looks like apart and the second is it assembled. I started with a small hole for the nozzle and worked my way bigger with each test, but ultimately I liked the flame I got with it removed. Hope this helps.

    IMG_3930.jpgIMG_3931.jpgIMG_3939.jpgIMG_3940.jpg
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    hitnrun

    5 years ago on Introduction

    I would love a more detailed size of the bigger fire ring, what was the size of each pipe cut.

    1 reply
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    I bodged together something similar but I get a lot of black soot. Do you have this problem? I plan on putting it inside of chiminea to give i an innocuous place to go. I also use granite rocks in the fire to give it something to heat and look more like a campfire.

    1 reply

    Yes I also get the soot, this is because there is no air mixer. Thanks for the rock idea I changed the sand to pebbles works good.