MAPP Gas replacement

[tjkubota93]

When brazing or soldering copper I wrap a wet rag around the pipe 2-3 inches from my work. It seems to act as a barrier and the pipe heats faster (as well as preventing damage further away)

 

[Lelandwelds]

When brazing or soldering copper I wrap a wet rag around the pipe 2-3 inches from my work. It seems to act as a barrier and the pipe heats faster (as well as preventing damage further away)

How does absorbing more heat with water keep extra copper from absorbing more heat? I like a backstop of 12" square of carbon felt to keep from setting the wall on fire. Dump as great a volume of heat as possible as quickly as possible. Then get out of there. Slow heating invites oxidation and cold and dirty joints leak.

I think you should just make the leap, buy the equipment, and learn more metal trade skills. If i thought like that I couldn't work on cars or anything because the total cost of equipment was too high. You buy tools for one project and use them for another. Later, you buy some other missing piece for yet another job. Before long, you can build trailers, log splitters, or furnaces.

 

[jaxs]

How does absorbing more heat with water keep extra copper from absorbing more heat? I like a backstop of 12" square of carbon felt to keep from setting the wall on fire. Dump as great a volume of heat as possible as quickly as possible. Then get out of there. Slow heating invites oxidation and cold and dirty joints leak.

I think you should just make the leap, buy the equipment, and learn more metal trade skills. If i thought like that I couldn't work on cars or anything because the total cost of equipment was too high. You buy tools for one project and use them for another. Later, you buy some other missing piece for yet another job. Before long, you can build trailers, log splitters, or furnaces.

Agree on all points.

 

[Raised on a Deere]

How does absorbing more heat with water keep extra copper from absorbing more heat? I like a backstop of 12" square of carbon felt to keep from setting the wall on fire. Dump as great a volume of heat as possible as quickly as possible. Then get out of there. Slow heating invites oxidation and cold and dirty joints leak.

I think you should just make the leap, buy the equipment, and learn more metal trade skills. If i thought like that I couldn't work on cars or anything because the total cost of equipment was too high. You buy tools for one project and use them for another. Later, you buy some other missing piece for yet another job. Before long, you can build trailers, log splitters, or furnaces.

��I am coming more around to the just buy the tools, - have done that most of my life with overall good results. But I don’t want to go acetylene just yet. The welding dealers around here are way too much in league with the professionals and do their best to get diy guys out the door, with, “go to trade school for two years” or “I had to dig ditches for 10 yers to get my liscense” I am sure there are some walk-in business friendly dealers in the big city one hour from here, but I haven’t found it yet. Got lucky and found a good hvac shop In Lexington n KY though. It’s just a matter of time.

I have decided to get a turbo torch and try the T-6 tip CADplans suggested and go the propane/mapp gas route but cannot figure out which turbo torch comes with adapters and regulators that work with acetylene (for my future) and with propane/Mapp for now. The kit descriptions just leave me confused. I see some that have the handel and work with acetylene but is there another regulator that I must buy to attach to propane?

 

[jaxs]

I switched from acetylene to propane using same rig other than cutting tip that fit's on same handle. (B and MC tanks need same adapters as those for normal gauges) Propane does every thing acetylene does besides weld. If you plan on using rosebud tip you will need at least 100 cf acetylene bottle to prevent drawdown acetone complications. There is no drawdown problem but if you loose pressure with propane you can put on the spare grill bottle or warm the tank with hot water.

 

[Raised on a Deere]

Maybe finally I am figuring the hardware out. I see a turbo torch kit on Amazon that attaches to propane and mapp pro bottles. I can use my Mr Buddy heater hoses tank adapter and regulator to attach to my 30 lb tanks. If I want to use acetylene in the future I buy a acetylene appropriate b/mc regulator.

So if I start out with T-6 tip, attach to H-4 handle, then hoses of desired length, and attach to regulator/tank adapters appropriate to fuel used I will have a brazing set up. Is this it?


Or are we talking two entirely different sets of hardware depending on whether propane or acetylene?

 

[jaxs]

Or are we talking two entirely different sets of hardware depending on whether propane or acetylene?

If you mean will the regulator and hose that convert's a Mr.Heater from 16oz LP bottles to 20 Lb grill bottle work with acetylene,the answer is no. There are regulators that work with both LP and acetylene and some that don't. If regulator work's for both,it will be stated in description.

 

[Raised on a Deere]

If you mean will the regulator and hose that convert's a Mr.Heater from 16oz LP bottles to 20 Lb grill bottle work with acetylene,the answer is no. There are regulators that work with both LP and acetylene and some that don't. If regulator work's for both,it will be stated in description.

No I am talking about a hose that connects to the 30 lb tank on one end and has a fitting just like a bottle on the end. My heater runs off the throw away bottles or the hose I mentioned. But there is no regulator, it is in the heater.

But that is what puzzles me, about the turbo propane (LP) torch I saw. From what some have been saying I thought they were taking their acetylene swirl air torch and using propane with good results provided they get the right tip. I want the capability to use acetylene should a job require but anticipate that I would be using propane because of the economy and safety. I don’t know if I would be swapping tips and regulators or if perhaps they were talking about one like you described that specifically is designed to do both, a requirement I need to get in my selection of turbo torches.

 

[radios1]

Maybe finally I am figuring the hardware out. I see a turbo torch kit on Amazon that attaches to propane and mapp pro bottles. I can use my Mr Buddy heater hoses tank adapter and regulator to attach to my 30 lb tanks. If I want to use acetylene in the future I buy a acetylene appropriate b/mc regulator.

So if I start out with T-6 tip, attach to H-4 handle, then hoses of desired length, and attach to regulator/tank adapters appropriate to fuel used I will have a brazing set up. Is this it?


Or are we talking two entirely different sets of hardware depending on whether propane or acetylene?

you won't be able to braze with just propane, it don't get hot enough, map, or map-pro gets much hotter.. what you want is an oxy/propane setup so you can braze larger pipes.. neither map or map-pro or propane makes a shielding flame, so, you'll have to use either flux coated rods or use flux.. that's another drawback to propane etc..

 

[CADplans]

. From what some have been saying I thought they were taking their acetylene swirl air torch and using propane with good results provided they get the right tip.

I have two propane tips, and one acetylene tip for my Turbo Torch. My Turbo Torch came with the propane regulator,,
I happen to have an acetylene regulator, so I use that with the acetylene tip.

I have accidentally started the torch, with the acetylene tip, on propane. The torch acts like there is too much air, and not enough fuel.
It burns, but, it burns "cool",,,