3/4 Inch Pipe Burner for Grill. Double 30 Inch length tubes. Aluminum Cast Air mixer Venturi from Tejas smokers. Two rows set at 45 degrees of center per pipe drilled with 3/32 drill bit.
you have more fuel than air ratio, that's why you have yellow tips, large holes are meant for natural gas, cause it's a lower pressure than propane, you should try to use a smaller orfice til you achieve a blue flame throughout the burn.
Well done getting it to even operate effectively! Getting the right fuel/air ratio and gas pressure at the manifold can be taxing when engineered for specific equipment. FYI, the low side L.P. regulator is measured in inches of water column and Propane needs 10.5" w.c. to be stable. (There are 28" water column in 1 p.s.i.) I have run some down to 8.5" w.c. without a flash back so look at that gauge again or find one in "w.c.. Notice your low fire setting looked great? High fire is lacking air, open that shutter to see if that works. A yellow flame is poor combustion and poor heat. Getting the right orifice, manifold pressure and air is the fighting balance. If you have trouble, try a venturi on each burner leg, after your 1/4" or 3/8" adjustable valve, tee to both venturi tube ports. Use 2ea. #55 orifices and increase the manifold pressure to 10" w.c. at the regulator. At each burners first drill ports, spanning from left to right burners, place 1/2" metal angle facing 45* down(angle face down), this will allow the gas to 'carryover' from both burners lighting both burners from one point. 7 months late and I'm sure it's working just fine but it interested me enough to give my 2 cents'. 39 years HVAC Contractor.............ha, lol. Nice job!
snurb48, I would like to know if you would help me design one using natural gas. I'm wanting to convert my wood fired Maple syrup evaporator to natural gas.
In this video I show you how and here in Brazil we make ovens too.... On my channel I show you how the gas burner with air diffuser was made, at low pressure! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-4VMuHQIe8C8.html 🇧🇷🇧🇷🇧🇷
Hello sir, thank you for sharing this video and your pipe burners look awesome, I want to add and build something similar to my Santa maria grill, in case if I don't want to use wood to do bbq, can I do similar design but three pipe burners and use those with natural gas?
Hey Brother, this is an awesome video. I have two questions, how far apart are your holes drilled in the pipe and how long is the pipe running out to your mixer. Thank you in advance.
I tried a lot of things and finally broke down and ordered the venturi from Tejas Smokers. The part is now $139. My issue is drilling out the office on the venturi. I don't understand how big it needs to be. I don't want to screw it up. I'm using mine for a firepit . Any help is appreciated Thanks
Great job thanks for sharing I have only one question how did you decide how to place your holes spacing and beginning and end that may be more than one question sorry Great job thanks for sharing
Well I did a lot of reading. Not a lot of these homemade pipe burner's pros divulge the exact size and spacing. I do know that if you're going with double rows you want them on a 90 degri angle of eachother but turned 45, so both are facing up. I read that a lot of mechanics have to build their own pipe burners for boilers. And from all the different online reviews and troubleshooting I learned that a 16th is too small. And a 1/8 is too big. So I split the difference with 3/32. Now, when coming to hold spacing I read that 3/8" should work for most efficient Pipe burners. And I did mine 1/2". Because I did not want to take the chance that the air mixer venturi could not support anything closer than 3/8. Even though the company I got the air mixer venturi from ( tejassmokers.com) had exact style pipe burners with holes 3/8 or closer. Now that I see it I probably could have gotten away with 3/8.
I'd do two versions of what I did on 2 lines. They make 3 way splitters for tanks on Amazon. And maybe a 30 psi adjustable gage since your putting out that much volume
So I was parachuting one day and my chute wouldn't open and just at that moment I saw another guys coming up towards me, so I yelled what do you know about parachutes he said nothing but what do you know about propane?
I built my own burner about 3 yrs ago. The trick to getting both sides of your pipe to light off is to bridge the gap by cutting a slit to the other side. Now when you light the burner, the other side of that pipe will automaticaly catch on at the cross over. If you look at your common household oven, they do the same thing. Mine was built out of electrical conduit on the cheap.
I have seen videos of people doing this for outdoor patio burners. It's a different built and ait venturi for that. Do your research on "homemade patio pipe burner" you search enough, and you'll find the better parts
