Propane fitting on weed burner

[vavet]

I have this weed burner from Harbor Freight.

Propane Torch with Push Button Igniter

Amazing deals on this Propane Torch W/ Push Button Igniter at Harbor Freight. Quality tools & low prices.

www.harborfreight.com

The hose fitting included Is for a 20lb propane tank. I’d like to refit it so I can use a 1lb propane tank to make it easier to carry around. The fitting appears to be a 3/8 NPT male so I’d need to convert that to the 1lb propane cylinder fitting, which I think is 3/4 NPT.
If I remove the male fitting, I find it is a 1/8 NPT, or at least I think it is. I used a 11/16 flare nut wrench for this, but a 17 mm is actually a really good fit, probably better than the 11/16. Is there a metric equivalent of NPT?

next Question….is there a problem with using a propane cylinder turned upside down? Do I need to fab up a crooked pipe so the propane cylinder is upright?

 

[Firstram]

A 1 pounder won't flow enough gas to do much good. If you want to try anyway, find/buy a cheap brass torch and harvest the tank fitting from that. I have silver soldered various pipe fittings on them for different uses.

 

[sparky 1971]

I have a weed burner and it goes through a lot of propane in a hurry. A one pound bottle on a real weed burner is going to get you nowhere fast. You're going to spend almost as much money buying fittings for a project that won't work as you would just buying a burner made for a one pound bottle.

I have this one for small stuff, I bought it on some kind of sale for about $15ish. I'm sure other places carry the same thing or similar for less money.

Bareblaster Weed Burner | Duluth Trading Company

Kills weeds the easy and environmentally friendly way - a good dose of direct heat! Get it at Duluth Trading.

www.duluthtrading.com

 

[rlitman]

That torch is designed for gas feed only. An upside down cylinder may fuel it with liquid, which may do bad things. It also consumes propane at such a high rate that it will freeze up your 1lb cylinder in well under a minute, choking down the flame drastically. That's dangerous, because the propane itself cools the torch body, as does the flame velocity that keeps the flame away from the orifice. So too low a flame can overheat the torch.

Skip the fittings, and make up a hand truck for your tank.

 

[The Cobbler]

the 1 lb tanks need to stay upright . laying on their side or upside down they will spit out liquid propane,which expands something like 400times more than vapour does, also as mentioned there's probably not enough area to vaporize properly with t he small tank. your results will be lackluster if it works at all.
you might have better luck with a 5lb bottle, but those torches like fuel, a 20 lb would be your best choice

 

[yatg]

Pic #1 is a POL (prest-o-lite) connector. .885"-14, left hand threads, CGA510
The one pound disposable propane bottles, squat and skinny, use 1"-20 threads, CGA600

Probably won't be able to find a single piece adapter, but you could make one up out of a POL to 1/4", coupling, 1/4" to 1"

https://www.amazon.com/dp/B008E33FKM/?tag=atomicindus08-20

https://www.amazon.com/dp/B082MBGVXN/?tag=atomicindus08-20

To repeat, its a bad idea to use a 1 pound tank for this purpose.

 

[zendriver]

Attach the 20 pound tank on a handcart.

Like others have stated, propane is designed to be used as a gas, Burning it as a liquid becomes a problem quickly which is why most tanks are designed to not function if not upright

 

[Kscardsfan]

Buy this or the one Sparky posted above. You’ll be time and money ahead in the long run.

JT850 - Firestarter™ Backyard Torch

The Bernzomatic@ Firestarter™ Backyard Torch has a wide brush flame and a 36-inch arm. It@s ideal for yardwork, driveway repairs or lighting fire pits.

www.bernzomatic.com

 

[RTM]

I’ve seen a guy run a 1# bottle slightly inverted on BBQ, the resulting boom scared the hell out of him.

and yeah, it won’t work worth a **** with a 1#. It ***** down the 20# really fast.

 

[GaryM909]

I would look into using a longer hose. I have joined three 50' lengths of 1/4" with no noticeable effect.

 

[vavet]

I used it with the 20# cylinder last year by putting it on my riding mower and driving around with it. We have about 250' of road frontage with a concrete curb and I like to knock down the weeds, but it ***** lugging the 20lb cylinder around. The cylinder is too big to fit between the back of the engine compartment and the front of the seat "pedestal"....basically the pass through when mounting/dismounting the mower. I had to set it off to the side, hold on to it, hold the burner wand, and try to drive the mower all at the same time. I was looking for an easier solution. I don't love the idea of a hand truck.
My 9 year old has been driving the mower around some without mowing. Maybe I can sit in the utility trailer and have him drive me while I deal with the burner.

 

[Forgottonia]

I was a farm kid in Nebraska in the days before no-till. We'd burn off the corn stalks every year after harvest was done. We used homemade stalk torches attached to a small bottle of propane. They're pretty easy to make.

The torch had a small pipe (~0.5" ID) attached to a hose which in turn was attached to the propane bottle. The other end of the small pipe was welded to a larger 8" long section of pipe (~2.5" ID) so the small pipe extended into the larger pipe by two or three inches. The back end of the larger pipe was open so it could **** air in.

You should just make one of these yourself. They're kinda fun to use--if you like burning stuff, that is. You probably won't die.

 

[RTM]

Got / get something like this, put a tank mount on top of it?

https://www.tractorsupply.com/tsc/product/cub-cadet-42-in-46-in-twin-bagger

Something like this behind the seat?

https://www.amazon.com/dp/B082VMPT9L/?tag=atomicindus08-20

https://www.amazon.com/dp/B00A2TDZ06/?tag=atomicindus08-20

 

[dogdog]

NVM

 

[dogdog]

NVM