Half Rot Zombie

IgnrntNewb I am not sure what stores are around you but here is a link to a 3/4 in coupler that you could cut in half and use as a thread protector. It is thin walled and not cast so it should work for you. I am sure you can probably pick these up and any major plumbing supply. Remove commercial link per TOS

Thank you Frosty, the burner were temporarily tack welded for testing. The attached images might clear up a few things but if not here are the specs I built the forge burners to. 1x1x3/4 tee, .035 welding tip, 8 in x 3/4 down pipe and 3/4 to 1 1/4 bell reducer. I welded on some L brackets and purchased some stainless steel clamps to adjust height of the burners. As for how I mounted the jets, the I welded a nut to the end of a 3 in nipple that is the same size and pitch of a welding tip then drilled a hole in the center of the tee and welded it in. I had to sell my drill press when I moved out of state but I do have taps and dies. The Shell is from an old helium tank lined with an off brand of isowool that doesn't require rigidizer. I have a tub of refractory cement to coat the inside but I have not done it yet.

I am running .35 welding tips but read that .23 - .25 is better for the type of burner that I built so I bought some today and tomorrow I will install and see if that makes a difference.

Thank you Irondragon. I did read that thread awhile back when I first found this site and I just updated my profile. I have done tons of research on forges primarily gas fed. I just haven't been able to locate any information regarding the burner melting. My last forge I built was all firebrick and a singe burner. I have over 100 hours easily and although the bell would get hot it never entered a liquid state. I built this double burner for higher heat applications but the burners reach melting point before the metal in the forge reaches a welding heat. I will add pictures shortly to show what I have done since the video that I posted.

I got them from Ferguson Plumbing Supply so most likely yes they are cast iron. My single burner was made exactly the same as the double burners and it never melted.

I have a very similar burner setup that I built a few months ago. I mounted them into a helium tank that I converted then insulated with ceramic wool and a fire brick floor. Not trying to hijack your thread but after about 15 minutes of use I noticed metal dripping from the ceiling where I mounted the burners after shutting it down i realized that the bells of my burners are melting. The forge floor gets hot and the metal I'm working gets glowing pretty quickly but it has not reached a plastic state. Anyone have any idea why the outlet of the burners would be getting hotter than the steel it is aimed at? After the video attached was made I welded L brackets so I could raise and lower the burners. I wanted to build a forge capable of welding for marrying mild to hardenable steel for axe heads and eventually Damascus. Any ideas would be greatly appreciated. Forge_1st Run.mp4