Pipe Burner Venturi | Useful Knowledge

[@saminsiddiquee2059]

Last part about air getting sucked in was super. You are a great instructor

[@useful.knowledge]

Thanks! Much appreciated!!

[@williamyork1601]

U cooking hamburgers,not sreel

[@MrGringissimo]

This is great! I ordered a venturi from a restaurant supply store for $11 and $25 shipping. Now I know better!

[@sgibau]

Hi 🙋🏽‍♀️ Do you have a video showing how you use your pipe burners and Venturi build to cook with? If not, would you please consider making one. Thank you in advance. Have a blessed day.

[@ptelgin7332]

I made this exactly only 1/2" Thanks for the great video and sharing some knowledge!!!

[@useful.knowledge]

Thanks!! It’s amazing how well they work with the basic items.

[@dswaggins2464]

Used your video from two years ago to build a burner for our charcoal pig cooker. Works great, appreciate the video!

[@useful.knowledge]

Awesome!! Thanks for letting us know!!

[@thebigboss024]

​@useful.knowledge that's what exactly I'm building right now, pig roaster. I know you said finger tight is OK, but if I installing it permanently, should I use sealant?

[@useful.knowledge]

@thebigboss024 Hi. I don’t think sealant is required. The gas/air is going out the slits and you don’t really have a build up of pressure. I have ran these for many hours at a time without any issues.

[@thebigboss024]

@useful.knowledge my pig roaster is up and running. Many thanks from your vert informative content 👍

[@useful.knowledge]

@thebigboss024 Awesome! Thanks!

[@jd5787]

Excellent video! It will come in handy for my diy pizza oven project that I am planning to make later this year! Thanks for sharing

[@useful.knowledge]

Thanks! That sounds like an awesome project!

[@madcyborg]

Learned a new skill today... Building one this summer - Thank You.

[@vicentemagdaraog2448]

I thank you for sharing experience God bless

[@useful.knowledge]

Thanks for your kind comments!! God Bless!!

[@victorramos3532]

Thank u thank u SIR ill do that tomorrow for my lechon grill👍👍👍

[@ShanePresleyC]

no welding, love it! so the burning is pulling the air in which prevents the propane from going out of the intake ports? annnnd just got to the wnd of the video. Thanks!

[@useful.knowledge]

Hi. The pressure of the gas and probably some heat transfer is causing it to pull air. Thanks for watching. We have a new video that I made last year for a two foot burner.

[@geraldcline-smythe5200]

Thanks man for your time to share your knowledge 👍

[@useful.knowledge]

Thanks for the kind comments!

[@joeyhardin1288]

Thanks Jamie. I remember the venturi build, both are Useful Knowledge. God Bless, stay safe.

[@SkywatcherSandra]

Wow. Fantastic job. Ty for sharing your information and your time with us. HUGS and GOD bless us everyone

[@useful.knowledge]

Thanks!

[@vicentemagdaraog2448]

Good sharing your job experience

[@patrickwilliams6374]

Thanks for the video

[@useful.knowledge]

Thanks!

[@Captain.Jack.sparrow1976]

very good explanation..I do understand many things from your simple explanation 👍👍👍👌

[@useful.knowledge]

Thanks!!

[@davidbennett1374]

Very nice.

[@useful.knowledge]

Thanks!

[@jeffmelvin3606]

Great videos, thank you. Have you done any calculatioms on BTU output? I'm using them to build a pipe burner for my pig cooker. Burner section of the pipe is 60" and will have 40 cuts, about what i think you have here.

[@useful.knowledge]

Hi. I haven’t done any calculations on the BTU. If you haven’t seen the video where I built the burner here is that video: Homemade Pipe Burner | Useful Knowledge kzbin.info/www/bejne/l4CblGeolr6frJo I also bullt a two foot version that I use for my small syrup cooker.

[@kurtrakozy1686]

This was totally genius way to go! Question: what did you use to cut the slots in the burner pipe?

[@useful.knowledge]

Hi. I just use a cutoff blade for cutting metal. Check out the channel for propane pipe burners. I have a few out there.

[@harryratuwie6713]

Good👍👍👍

[@leeknight9063]

What size pipe would you use for 10’ burner?

[@useful.knowledge]

I think the 1 1/4 inch would work.

[@leeknight9063]

@ thank you. Do you think putting the slits 1” apart would be okay?

[@useful.knowledge]

You’re probably going to need to be pushing more pressure with one inch cuts. 1.5 inch cuts seem to be about perfect on my long and short burners.

[@leeknight9063]

@@useful.knowledge Thank you sir

[@philipjonker3602]

Accidently bought galvanized pipes and fittings instead of black steel pipe. Is this a problem?

[@useful.knowledge]

I wondered that same thing so I checked some forums. Consensus is that galvanized pipes should NOT be used for burners. Apparently they off gas when heated.

[@tracydavid4411]

Do you think you can take this set up except have the 1& 1/4 pipe running parallel to the venturi pipe? so basically using a another pipe nipple and tee into the center of another 1 & 1/4 tee and run the burner pipe parallel instead of in the end? Thanks for any help. I did the same set up with a smoker I built cut the slits in the pipe except that the gas line comes in to the middle of 2 smaller sections of pipe but I do not have the venturi and it burns dirty and yellow flame and when I raise the lid the flame will go out and I want to try to build this venturi.

[@useful.knowledge]

Hi. I think it would work. About your other setup, yellow flame is usually the orfice or the amount of air. I would change the orfice drill out size and make it smaller. Here is a homemade Venturi that I have used on everything for the past two years. Homemade Pipe Burner with Homemade Venturi - 2ft version | Useful Knowledge kzbin.info/www/bejne/jnzEkGeKmc1pgM0

[@CMZneu]

This is great man! I was just thinking the whole concept of the venturi is so simple i can't believe they charge so much for it, i was a bit hesitant to make one myself since explosions and stuff lol but after this video i think i'm going to try! Two questions though... can i use natural gas? And can i simply have one tee joint but with the venturi one at a 45 degree angle so the flow is better and the air doesn't have to make a 90 degree turn? sorry if i didn't explain it correctly, english is not my first language.

[@useful.knowledge]

Hi. It’s more about the gas flowing straight into the burner under pressure and the resulting in flow of air. It’s sounds like you are thinking about using a Y connection. I could see that working but you will most likely have to adjust the orfice to get the flow required to make it work. It would definitely be worth a try and really cool if it works!!

[@NaryisAlbornoz]

No hay problema si sé hace con ranuras

[@wemcal]

Great video and information

[@useful.knowledge]

Thanks!!

[@MisterAnthony-yo1it]

I made a burner from your instructions but have all orange flames still. 48” pipe 1” diameter, 14” throat… tee is 2” reduced to the 1” pipe. I can’t figure it out for my pizza oven!😢

[@useful.knowledge]

How much pressure are you running? Sounds like it needs more pressure and more air flow.

[@MisterAnthony-yo1it]

When I use the orifice that wasn’t drilled out, I got a blue flame, but couldn’t get a variation in flame strength. Ie: high low. Just low… but blue. The drilled orifice (5/64) gets me great heat and height, but orange. I’m baffled.

[@MisterAnthony-yo1it]

Standard 20lb propane tank w regulator that doesn’t adjust

[@useful.knowledge]

Ok. Since you have the non-adjustable regulator, you are probably not getting enough gas into the pipe. I think if you get a hose with an adjustable regulator, that should work for you

[@cynthianichols5020]

just found your videos, Thank you for them, lots of useful knowledge! Keep them coming please!

[@useful.knowledge]

Thanks so much!! We will keep those videos coming. Thanks!!

[@freddycothren4301]

What size pipe u use in 4 burner? Looking 4 something that will heat up 2 350 degrees at least. I have a homemade 500 gallon rotersy .Looking 2 contain 225 /250 degrees. But would like 2 get above 500 2 burn it off. What size holes in burner pipe? I've tried alot of different ways. But can't get consistent. Always 2 hot 1 side or other. Thanks very Very much for what u do

[@useful.knowledge]

Hi. The pipe s 1 1/4”. Here is a link to a video when I built the pipe burner kzbin.info/www/bejne/l4CblGeolr6frJo. That should help with your questions.

[@mosesizuagie6170]

Very nice

[@jsnthurst1]

If you didn't have enough slits in your burner then couldn't gas come out your tee? So how do you know how many slits to cut? Do you really need 2 side inlets? Would 1 work fine?

[@useful.knowledge]

I honestly do not remember where I learned the 1.5” spacing on those slits. It was many many years ago but it works. I also use that spacing on my 2 ft version and it will throw the heat. We have a video on that one and you can see it running in the latest syrup video. You could probably get away with not using a T and just use an elbow. The drilling might get tougher to keep inline.

[@lucytoche950]

Can you please tell me the shelf life of your fig preserves video from years ago? You turned the jars upside down and did not water bath. Thank you.

[@useful.knowledge]

Hi. They last at least a year in the pantry. Also, once they are open, they last for weeks in the fridge. Im still eating on the jars I made last year. I have two left. 😃

[@jacobleviev1243]

Hey do you think you can make a video on how to make a natural gas burner for pizza oven that can get the temps up to 900 degrees. Couldn’t find anything on KZbin and you look like you know your way around these gas burners. They sell these natural gas burners for like 2,500$ crazy. I know it could be done

[@borisjovanovic99]

Good question Jacob! I was wondering the same thing, as they charge so much for it. There is almost no video on YT that I was able to find that outlines the process for the Pizza oven burner.

[@76fjd]

Do you think a 16” throat would work? I’m building a smokehouse out of 8” thick cinder block and want the Venturi on the outside. I would start my slits 8” off the inside wall, it would 6’ long.

[@useful.knowledge]

Hi. I think it would work. I made a smaller version for my 2’ syrup pan. It’s got a 12.5” throat and a home made venturi. It ran flawlessly for 8 hours and when making syrup. Here is the link to that burner build: kzbin.info/www/bejne/jnzEkGeKmc1pgM0si=kJ0ZxrXDZ74BS3cm

[@giovannniiii]

hi , i am Giovanni , and im living here in Manila Philippines , and i make a Pizza brick oven , i can see that you are reallly good to build burner , bud is it possible to build a burner for pizza oven ?

[@useful.knowledge]

Hi. I think it would be possible.

[@gregory6488]

Do you have a link for the orifice on ebay or a name so I can google it?

[@useful.knowledge]

This is the one that I used: Orifice Connector Brass, 3/8 Inch Flare M x 1/8 Inch MNPT, 2 Count a.co/d/30Gi6z4

[@bangtigorgreat]

How about the pressure of gas? Is the air still sucked to the pipe eventhough the pressure is low? Or there's minimum pressure?

[@useful.knowledge]

Hi. We have a new video that shows the pressure turned up and down really low on our new 2ft pipe burner with homemade venturi. Homemade Pipe Burner with Homemade Venturi - 2ft version | Useful Knowledge kzbin.info/www/bejne/jnzEkGeKmc1pgM0

[@BackyardDad1]

Nice build. Do you think you could build this in a U shape or would it be better to put an elbow a short piece of pipe another elbow and a piece coming back? I am looking to build a pipe burner that is 2 feet long for a maple sap evaporater. Also where did you find the orifice?

[@useful.knowledge]

Hi. I built some two foot burners last year. The homemade venturi should work. I’ll put it on one of the two foot pipes tomorrow and let you know. I bought the orfice on Amazon. You may have to drill it out like I did in this video kzbin.info/www/bejne/l4CblGeolr6frJo.

[@useful.knowledge]

Ok. I checked the 2ft burners with the homemade venturi. They worked just the same as with the bought venturi. It did have a small yellow tip but that was when I was really putting the gas to it. So for full disclosure, my smaller burners have at least an 18” throat, 2ft of burner slits, and then about 12” of pipe before the end cap. I had the pipe in the barn for years with threads already on each end so I just used what I had. I made pics of the burner running a few minutes ago. If you send me an email at [e-mail], it will share them with you.

[@BackyardDad1]

@@useful.knowledge thank you just sent you an email!

[@MAR-SHALL]

What is a Venturi used for?

[@useful.knowledge]

In our case, the venturi is where the gas and air mix before going into the chamber of the pipe burner.

[@Patat0four]

All in all, what are the real risks and how a neophyte like me can be confident it wont blow everything and die ? I plan to do a burner like that to convert 45 gallons wood mechoui into a gas one.

[@useful.knowledge]

Hi. From my perspective, the real risk of blowing this pipe burner up and dying is very low. This is about like lightning a gas grill. Good this is you can alway turn off the gas.

[@AWhippster]

I just made one of these venturis for my grill. I am having some issues though. I drilled out the orfice to 2/32” and am using 1” pipe. I made a bulkhead through the side of the grill using 2 1” floor flanges and threaded the Venturi on one end, and inside the grill I have a 24” pipe. The first 4 inches are not slit, then after I have slits every inch. When I went to light it, it did burn nice and blue. I noticed over time with the lid shut that the flame either yellows out or blows out when I open the lid. I kept the exhaust stack on the grill fully open, and even tried keeping the flue on the other side of the grill open as well. How might I fix this? I am currently on a regular set 20lb grill regulator. I thought about spacing the orifice further down the T into the throat of pipe, and I also thought about getting an adjustable regulator. My goal is to have something quick to use and cook on/ searing some steaks, that neither the charcoal or pellet grill can do quickly

[@useful.knowledge]

Hi. Yellow flame is indicative of not getting enough air. When you close the lid are you somehow shutting off some airflow into the venturi or just the pipe?

[@AWhippster]

@@useful.knowledge just the pipe. The Venturi is a T on the outside of the grill. I can also see the flame in the T; not sure if it’s supposed to be lit that far back. I’m not sure how I can get more air to it, I might have to try a smaller nozzle

[@useful.knowledge]

Ok my next thought is that your throat needs to be longer. From my experience, an at least 8 inch throat is key. On my two foot burners that bush for my small syrup pan, my are closer to 10 in. To troubleshoot this, I would just purchase a coupler and a short pipe nipple to add in between the existing throat and venturi to see if that corrects the issue.

[@AWhippster]

@@useful.knowledge I ended up getting it to work. I took out the orifice and put on a needle valve with a 1/4” male to male coupler and closed it off with a cap that has a 5/64” hole. I also dumped the fixed grill regulator for an adjustable one and it burns very nice with a nice blue flame. I think the issue all along was too little propane pressure. The throat on it is about 7-8” with the fittings and pipe all hooked up

[@useful.knowledge]

Sounds good!! Glad you got it working!

[@chriscanoy11]

Can I order one

[@georgehayduke6717]

Do I need both air vents?

[@useful.knowledge]

Hi. In most cases, yes. It really depends on the burner length and how hot you want to run it. I built a venturi for my 2ft burner that I wanted to run hot. For this, I used a 1 1/4 x 2” coupling. The 2” on both sides really allows the air to be pulled in.

[@jeffhoward7642]

What are dimensions of the orfice and the bushing??

[@useful.knowledge]

Hi. Orifice Connector Brass, 3/8 Inch Flare M x 1/8 Inch MNPT. For the bushing, I took the orifice to the hardware store and matched it up.

[@jeffhoward7642]

Thanks appreciate it!

[@useful.knowledge]

I meant to put this link in the reply. This is where I initially made the burners. I also used the same venturi setup on some two ft burners and they worked great. More orifice info in this video kzbin.info/www/bejne/l4CblGeolr6frJo

[@leemiddleton8318]

What is the gas pressure are you're using?

[@useful.knowledge]

Hi. I’ve got a 30 psi regulator at the tank.

[@aaronpalmer5782]

Hey, ive been doing syrup for a few years all on propane. I want to build this setup to go with the 3 chamber pan I built but I have a few questions, your video covers the venturi (Great) now the flame looks pretty small for boiling sap (as from your first video I know you used this for that). 1st why 1 1/4 pipe if I run 3 burners that size thats alot of pipe to keep full off my 100# lp tanks.my pan is a 2x4 progressive design pan.Second if you boiled off that burner can we see that. Curious how much has that thing eats in an hour.

[@useful.knowledge]

Hi. I did a lot of research and 1 1/4 seemed to be the size that most folks used. That includes some old timers that I asked. I have a 2x6 pan that was really just too big for the amount of sorghum juice that I’m producing. I downsized to a 2x2 pan that easily holds about 10-12 gallons of juice at a time. I made new pipe burners and used the same venturis as the first pipe burner video. It worked great. The pan is so thin that I didn’t have any issues with the boiling. Here is a link to the syrup making video. kzbin.info/www/bejne/h2fQnpinftKejbc I didn’t even change out the orfice size for the 2ft pipe and they still worked great. For the original long burners in the first video, drilling out the orifices is the only way I was able to get the burn that I wanted. I messed up a few but they are cheap. About the propane usage, it’s surprising not as much as I expected. I’m the syrup video, I had 3 of the 20lb tanks and I didn’t even use half of each. Hope this helps.

[@aaronpalmer5782]

I went with 3/4 pipe on 3 pipes 55" long i had a bag of #55 orfice i drilled out to 5/64 cut the pipe in 1" intervals one pipe get plenty of good flame but as I add pipe im have a stair step effect if that makes amy sence didnt know if i need to go from a 20# high pressure regulator to a 30# regulator? Thanks for the reply Ill check out the new video

[@useful.knowledge]

Do you have three separate venturis running from the 100lb tank or a single venturi and then split to three pipes? Also what is the flame doing?

[@aaronpalmer5782]

I have 3 separate venturis 1 on each burner. From the tank its 1 20# high pressure regulator, then it comes to the middle burner and then I branched from the middle burner to the other 2. I have pictures of the set up with the regulator wide open. Not sure how to get them or a video to ya.

[@useful.knowledge]

[e-mail]. All three of us at useful knowledge are engineers that were raised in the country so maybe we can help figure it out.

[@medina3420]

dud you use a regulator? what psi ?

[@useful.knowledge]

Hi. Mine are 30 psi regulators.

[@1ProShooter]

HOW CAN THIS BE TURNED INTO A MULTI BURNER FOR A GRILL?

[@useful.knowledge]

Hi. We are actually thinking about building one for a gas grill.

[@fredknowsstuff]

Have you built a large fire pit burner? I want to build my own natural gas fire pit burner. Hard to find good example like this video.

[@useful.knowledge]

Hi. I have a couple of pipe burner videos on KZbin. The first one is a long burner: kzbin.info/www/bejne/l4CblGeolr6frJosi=hXa5cnzA51q1jgkf The second video is a two foot version with a homemade venturi: kzbin.info/www/bejne/jnzEkGeKmc1pgM0si=qMzFhFJ7kX8adgIF

[@jbaker4900]

Doesn't look like you need the washers. Might want to try some advertising fridge magnets to control the air

[@useful.knowledge]

Hi. You really don’t need the washers for this length of burner. When I first built it, it ran perfectly with no washers. I was thinking that it was just pure luck. A different length of pipe burner or just propane quality could create the need to control the air. I came up with the washers and the small screws because it was easily adjustable and I wanted to give folks ideas. I think anything that could be rigged up to control the air and is stable would work. Your magnet idea would work.

[@henrylozano9790]

Were can I buy orapice

[@useful.knowledge]

You can get them on Amazon. They have many different sizes so you can order what you need. Remember that you can always drill them out.

[@zackwildman3410]

you dont even have to drill a hole if you were to use a 4 way and you can get size reducing fittings

[@omartelodomarcelo]

I saw that you make a gas burner, take a look at what I did.... Inside my burner there is an air diffuser, for a better air/gas mixture... thus generating a perfect burn. Inside the burner is another thinner pipe, with cuts. If you are interested, send a message. thanks

[@NorthRiverGuide]

You could cut down the cost of your venturi by ditching the nipples 8-32 screws and pipe clamps. Just drill and tap the lip of the tee 6-32 to screw the washers to with short 6-32 screws.

[@rachelstrahan2486]

👍

[@Madasafish2]

I don't understand the purpose of the nipples. Why not put the vents on the end of T?

[@useful.knowledge]

I’m sure there is a reason. The folks that build them around here use the nipples. I really figure it’s to mitigate wind.