^^^ just go to
www.zoellerforge.com and I'd suggest just buying his "side arm burner" that is pre-drilled and tapped and ready to pretty much "plug-n-play". There is a lot of great info on that site that is simple to understand, but I still suggest buying his other than sourcing your own parts, plus you'll want to have a flared stainless steel burner which you pretty much have to order anyway.. It saves a lot of guessing and checking as opposed to making one which really doesn't seem save all that much money or time anyway, unless you make them all the time and are really good at it and buy supplies in bulk IMHO.
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ETA: I just checked the prices on his site which seemed to have gone up since I last checked? The side arm burner is $52.50 + shipping
For "me" it is worth the cost to pay that, because I made one before and couldn't find the correct sizes for a few of the main parts no matter what hardware or home improvement store I went to.
They sell the (pretty much) exact same burner kit at hightemptools.com which is $45, (which I purchased a while back) but it doesn't come pre drilled or tapped, which was a pain (for me), plus they ran out of the correct size on one of the small pipe nipples and sent a different size that didn't fit snugly, which for me kinda defeated the purpose of buying it in the first place.. At least they sent an email explaining how I could go about making it work anyway
This is just my experience, and I'm sure YMMV
~Paul
My YT Channel
Lsubslimed