replacement stainless steel grill grates How to Make a BBQ Burner

For a DIY baking tray project I am working on, I need a propane burner that can heat the cooking surface and I think the construction of the burner will be a good guide.Buying a burner is not possible as the size and power I need is not available on the shelf.This may also help you if you need to replace or repair the BBQ burner.But be alert first, it's dangerous to play with propane, so if you decide to try, you take risks and dangers yourself.Wear safety glasses, gloves and non-safety glasses at leastFlammable clothes.In very well ventilated places, do the same outside or in an open-air garage, you don't want carbon monoxide poisoning.This is what I use, but other materials can also be used according to the application: Tools: So let's talk about the theory, at least in my layman's words: the design of this burner is not affected by the Wenzhu effect, because the gas is discharged by a small hole mounted at the end of the burner, it mixes the air along the burner tube.The mixed propane and air are then forced to drain from the burner hole or trough and burn when ignited.Propane needs to be mixed with air to burn in a specific proportion, but after trial and error I was able to get the burner to burn with a beautiful blue flame.If you get a flame in yellow or orange it means noThe burning fuel and not enough air are mixed with propane for proper combustion.The size of the hole mouth is very critical to the size of the pipe, if the pipe is too small and the hole mouth is too large, you will get incomplete mixing and incomplete combustion.For this design, I tested many different orfice holes from: I landed on 1.Holes 2mm.Check out my video on how to build the burner, the written steps are as follows: the orifice assembly is made from the center of the 1/8 "brass Non-Proliferation Treaty end cap, the center is punched and then drilled out with 1.2mm bit, also used cutting oil.This hole is a hole, and propane will flow out of the hole at a high speed.Also pro-Tip, if the drill bit is too small for the chuck of the drill bit, use some metal tape and wrap it around the drill bit so that it can make the shaft large enough to be caught by the chuck.Center press 3/4 steel and drill a hole corresponding to the 1/8 Non-Proliferation Treaty tap.A large number of cutting oil threads are used in holes.This hole will thread 1/8 "brass Non-Proliferation Treaty tube nipple.Once the tube nipple goes through the hole, remove the opening cap of the tube with the cover that drilled into the hole from the previous step.Screw the ball valve to the other end of the nipple.By sealing the thread with a PTFE tape or a pipe paint, make sure there is no leakage seal between all fittings.The main body of the burner is made of a piece of stainless steel pipe, which is very difficult to use when it works hard.I'm going to drill the burner hole on it first, but it takes too long and too much work, so I decided to cut the small thin slot "hole" on the Tube 1 cm from the burner ".I did some short work with my portable band saw, but could also use a hacksaw.The end of the stainless steel tube is heated and then bent off on one pair.This makes the burner tube curled and "capped" to become a flat point that can be drilled and used to install the burner.After curling, the end of the tube is welded off (this can also be welded ).Next, the tube is welded to the black iron reducer accessories of 3/4 "to 1/2", and the reducer accessories provide a good burner entrance for air and hole mounting.Two 3/4 steel labels were welded on the side of the reducer with one hole (3-32 bolts are the ones I use to accept to install the hole assembly.Again, this can be welded if you don't have a chance to reach the welder, and the holes can be drilled directly to the end of the reducer fitting.I chose to weld on some labels because it was easier to use.Note on welding black iron reducer fittings: These fittings are usually cast iron and are not good or easy to weld.Since I am just sticky welding, this is not a real problem and the cast iron should also be preheated before welding.I used a MIG welder with stainless steel wire and heard that it can be used to weld cast iron.So far I have no problem with cracking.Nickel electrode can also be used.Align the hole opening of the hole opening assembly so that it is located in the middle of the reducer fitting 1 1/2 "opening, and you want propane to shoot down the burner tube directly so that it can be mixed with air and clamped in place, mark the hole with a marker pen.The hole is drilled into the hole assembly that matches the threaded hole so that the hole assembly can be bolted to the reducer fitting.In order to connect the burner to propane, I used an accessory from the torch fitting on the propane hose and regulator to the 1/8 "non-proliferation treaty thread, in my case the ball valve.It will depend on the accessories you use, so just check your local propane supplier or accessories store with what I have done as a guideline and they will find the right accessories for you.The propane regulator I use is a low pressure regulator for grilling, it needs to be large enough to handle the capacity of the number of burners, in which case I adjust the size of this regulator to 80,000 BTUs is enough.Excess capacity is better than not enough.Remember that the flow rate of the regulator is different from the pressure it can provide.Low pressure Propane regulators (less than 1 psi) are very common, in pure gray or silver color and in red color for High Pressure regulators.Adjustable high pressure regulators can also be used, but it depends on how strong you want the flame to be.Fix the burner firmly on the vise or table before testing.Open the propane on the tank and open the valve 1/4, you should hear the gas flow and use the BBQ lighter to ignite the gas coming out of the slit cut from the burner tube.The entire Burner should be lit without increasing the gas flow.If everything is OK, there should be a beautiful blue flame.Try to adjust the gas flow to see if the flame burns correctly and the flame should be blue when low or high.If you do not try to change the size of the hole or the position of the hole assembly.With this design, a large burner can be made as long as you find a tube large enough to mix propane and air properly.Also keep in mind that the stainless steel burner tube will exceed the normal soft steel, but the soft steel can also be used, especially if you are doing proof of concept.Good luck to you-careful!