Dec 5, 2022 · If the igniter is working, but the torch still won’t light, the problem may be with the nozzle. The nozzle is the part of the torch that controls the flow of propane. Hence, if the nozzle is clogged, the propane will not come out of the torch. To clean the nozzle, remove it from the propane torch and then use a wire brush to remove any dirt ... I am using it with O2 and propane using Gentech preset regulators. I turn the fuel on 1/8-1/4 turn, then try to light it. A flint lighter won’t light it. If I use a butane torch to try to light it, I will get a flame as long as the butane flame is in the fuel stream, but when I move the butane torch away the Little Torch won’t stay lit.4. Mag-Torch MT 5000. This one is an outsized version that measures 116 inches in length, from the nozzle tip to handle, the handle has 36 inches in length, has a 3-inch diameter, and it weighs 4 pounds. It delivers 500,000 BTU, and it can be paired up with a standard 20lbs. propane container.Pump a few 3-second bursts of butane into the lighter with the stem of the can inserted into the valve of the lighter. When the lighter is fully charged, butane will begin to leak out the stem and will not enter the lighter. Make sure the lighter isn’t overfilled. Stop adding butane as soon as it seems full.The VT 2-23 C propane torch is one of the most convenient to use items. It comes as a fully assembled product and is ready for use. This Red Dragon propane torch can be attached to any available refillable propane tank. However, I highly recommend you to go for the 20-pound cylinder with a hand-tighten tank fitting.Map-Pro and Propane Gas Swivel Blow Torch with Trigger Ignition A 360 degree vertical swivel torch with trigger-start A 360 degree vertical swivel torch with trigger-start ignition provide easy, 1-hand accessibility to large diameter soldering, brazing and heat treating jobs in tight spaces. The optimized swirl flame provides hot, fast ... Jul 10, 2022 · The VT 2-23 C propane torch is one of the most convenient to use items. It comes as a fully assembled product and is ready for use. This Red Dragon propane torch can be attached to any available refillable propane tank. However, I highly recommend you to go for the 20-pound cylinder with a hand-tighten tank fitting. Oct 14, 2021 · While it may seem obvious, your propane torch will not work if it doesn’t have any fuel. Be sure that the fuel levels in your propane torch are at acceptable levels. If the fuel levels are full and the torch is still not functioning, that brings us to our last step. It is also the easiest type of torch to use. Brazing torches: Brazing torches are used for brass pipes. While this type of torch can still be used for copper pipes, it can be more difficult to use compared to the propane type. Mapp gas torches: Last but not the least, Mapp gas torches have gained popularity over the recent years and may be used ...3 Answers. Open the tank supply valve very slowly and make sure the weed burner valve is closed when you do it. I mean if you think you are opening it slowly you are still opening it too fast. Some of these newer tanks have a safety feature that cuts back on flow if high flow is detected.The VT 2-23 C propane torch is one of the most convenient to use items. It comes as a fully assembled product and is ready for use. This Red Dragon propane torch can be attached to any available refillable propane tank. However, I highly recommend you to go for the 20-pound cylinder with a hand-tighten tank fitting.Aug 17, 2021 · Propane Torch Weed Torch Weed Burner - Electri Automatic Ignition, 800 000 BTU Propane Weed Torch with 10FT Hose, Push Button Electronic Spark Generating Powered by AAA Battery (not include） 4.5 out of 5 stars 139 The electronic igniter is working, but will not light. When lit with another source, it wouldn't stay lit. Adjusting the air intake solved the problem com...Steps to Attach the Burner Torch to a Propane Tank. The propane cylinder will come with a plastic screw cap for extra safety. Make sure the valve on the propane cylinder is off. Then, you need to remove the safety cap. The regulator will have two male fixings on it. One of these screws into the propane bottle, the other screws into the rubber ...Steps to Attach the Burner Torch to a Propane Tank. The propane cylinder will come with a plastic screw cap for extra safety. Make sure the valve on the propane cylinder is off. Then, you need to remove the safety cap. The regulator will have two male fixings on it. One of these screws into the propane bottle, the other screws into the rubber ...When attached to a cylinder valve and tightened, the brass fitting will push the internal valve open and allow gas to flow out of the cylinder to the appliance, if the handwheel is in the open position. This fitting must be in place for gas to flow out of the cylinder. Otherwise, turning the handwheel will not produce the intended result.Pump a few 3-second bursts of butane into the lighter with the stem of the can inserted into the valve of the lighter. When the lighter is fully charged, butane will begin to leak out the stem and will not enter the lighter. Make sure the lighter isn’t overfilled. Stop adding butane as soon as it seems full.Mar 22, 2020 · My Bernzomatic decided to stop working so I decided to see if I could fix it. Lighting in this vid is bad and I apologize! Buy on Amazon. While the Hot Max 500G Propane Torch comes in three size options, the star of the show is definitely the 500,000 BTU option. No wonder it’s called the ‘Big Max’. With that kind of strength to its flame, this propane torch seems more like a mad villain’s weapon rather than a household tool.The torch features a trigger-start ignition and an adjustable flame control knob. Flame control valve easily sizes flame and extinguishes when finished. Use only with propane fuel, such as the Bernzomatic 14.1 oz. Propane Hand Torch Cylinder. Versatile webbed flame completes a variety of household projects, including small diameter soldering ... Map-Pro and Propane Gas Swivel Blow Torch with Trigger Ignition A 360 degree vertical swivel torch with trigger-start A 360 degree vertical swivel torch with trigger-start ignition provide easy, 1-hand accessibility to large diameter soldering, brazing and heat treating jobs in tight spaces. The optimized swirl flame provides hot, fast ... BernzOmatic Soldering Propane Torch Kit (14.1-oz) A multi-purpose propane torch designed for a variety of household projects including small diameter soldering, thawing, melting and heat application. The torch features a trigger-start ignition and an adjustable flame control knob. Kit includes a 14.1 oz. propane-filled cylinder. View More For this reason, they do not have a pressure regulator to control the flow of fuel through the torch. When these torches are inverted, the liquid propane works its way through the torch and extinguishes the flame. For work that requires inversion, we recommend a pressure-regulated torch, such as the MT535C, MT551C, MT555, MT560C, MT565C, or MT579C. Nov 14, 2022 · Some propane torches require a high-pressure regulator, while others require low-pressure regulators. There are also adjustable pressure regulators that help calibrate gas pressure as needed. All propane regulators do not have the same roles. While some are good for high-temperature brazing, others are good for low-temperature welding. Nov 5, 2017 · The Mag-Torch MT525 self-lighting propane torch creates a high intensity triple point flame for general heating applications. The adjustable flame knob allows for flame control and fuel economy. Self-lighting. Triple point flame for high heat. Fuel control knob allows for easy on/off. Constructed with a brass valve. The electronic igniter is working, but will not light. When lit with another source, it wouldn't stay lit. Adjusting the air intake solved the problem com...Posted: Wed Jun 11, 2014 11:04 am Post subject: Re: Propane Torch Won't Stay Lit. There's allegedly a lot of moisture in propane. Over time dust and garbage collects down in that sintered bronze looking doo-dad down below the head. I've heated that up good with another torch and things ran better for a while.The process of cleaning a propane torch tip is a simple cycle. To wipe an obstruct out of a propane torch, you should eliminate the spout and bubble it in water. When it’s thoroughly heated up, the buildup in the light should emerge from its agreement. Take the spout out, let it dry, and afterward reattach it to your light to finish your de ...Oct 14, 2021 · The first step to fixing any igniter is to find the source of the issue. The first step will be to check if the igniter has any spark to it. This step is only applicable to those who have a self-igniting torch. But you will want to press on the button that typically ignites your gas line. Step 3. Press the plastic nozzle extension tube attached to a can of compressed air against the lighter gas outlet valve. Hold the canister plunger down for one or two seconds. Move the extension tube back an inch or two to blow remaining residue from the lighter recess. Refill the lighter with triple-refined butane gas, and test.To unclog a propane torch, we need a pot, 1 or 2 liters of water, a stovetop, and your utmost attention. 1. Take A Medium-Sized Pot. It’s better if it’s not a pot that you use regularly. Fill 70% of the pot with water. Put it on the stove and raise the heat so that the water gets boiled quickly. 2.Aug 3, 2014 · Every Bernzomatic torch I've seen that has a spark lighter uses a piezoelectric element. No battery--has a pressure-sensitive quartz element. I have at least one where the piezo unit no longer works. The torches are not overly-robust. Those torches would be a lot more useful if they didn't screw-up the gas flow out the nozzle. Poke the end of a safety pin into the small hole on the side of the regulator below the torch nozzle. Work the pin around in a circle and side to side to dislodge any dirt or other material that might be clogging the system. Blow compressed air into the regulator hole. Reconnect the propane canister and try igniting the torch in the normal manner. Never use this torch upside down. The propane cylinder contains gaseous and liquid propane. If the torch is moved rapidly, tilted too far to the side or upside down, the liquid can enter the valve and cause the flame to flare or extinguish. • Keep a fire extinguisher near where you are using the torch and where you store the torch. Posted: Wed Jun 11, 2014 11:04 am Post subject: Re: Propane Torch Won't Stay Lit. There's allegedly a lot of moisture in propane. Over time dust and garbage collects down in that sintered bronze looking doo-dad down below the head. I've heated that up good with another torch and things ran better for a while.620. $39.99. $39.99. Propane Torch Weed Burner,Blow Torch,Heavy Duty,High Output 800,000 BTU,Flamethrower with Turbo Trigger Push Button Igniter and 9.8 FT Hose for Roof Asphalt,Ice Snow,Road Marking,Charcoal. 4.3 out of 5 stars.This torch is compatible with standard liquid propane cylinders including, 5 lbs., 10 lbs., 20 lbs., 30 lbs., 40 lbs. and 100 lbs. propane cylinders. The Flame King YSN500K Torch includes a 10 ft. hose rated at 350 psi, as well as a brass adjusting valve to control the flame.FlameNSky Posts: 7. I finally bought a weedburner. I must be doing something wrong with it. Out of 20 attempts, only once did it fire as it should. Every other time it just has a small flame. (relatively speaking) I was hoping someone might have an idea as to what I am doing wrong. I did check to ensure the tank was full with good pressure and ... Very simple solution for propane bottle torch when it wont light. Never throw these away! This is the older TS4000 model. Very simple solution for propane bottle torch when it wont light. Never ...Mar 25, 2016 · 3 Answers. Open the tank supply valve very slowly and make sure the weed burner valve is closed when you do it. I mean if you think you are opening it slowly you are still opening it too fast. Some of these newer tanks have a safety feature that cuts back on flow if high flow is detected. BernzOmatic Soldering Propane Torch Kit (14.1-oz) A multi-purpose propane torch designed for a variety of household projects including small diameter soldering, thawing, melting and heat application. The torch features a trigger-start ignition and an adjustable flame control knob. Kit includes a 14.1 oz. propane-filled cylinder. View MoreRe: Propane torch kit that works upside down. Author: vic (CA) The Lenox LT91 with adjustable flame or LT90 with on/off flame both work great upside down. It's self-Igniting, has cast aluminum body and to me a "perfect" torch. available:This propane torch has a turbo-blast trigger, making it perfect for controlling weeds or clearing ice from sidewalks and driveways. The torch generates temperatures over 3000º F with ease when you connect this torch to any standard 20 lb. propane tank. This is a great propane torch for small jobs that need a powerful flame.This propane torch has a turbo-blast trigger, making it perfect for controlling weeds or clearing ice from sidewalks and driveways. The torch generates temperatures over 3000º F with ease when you connect this torch to any standard 20 lb. propane tank. This is a great propane torch for small jobs that need a powerful flame.Aug 17, 2021 · Propane Torch Weed Torch Weed Burner - Electri Automatic Ignition, 800 000 BTU Propane Weed Torch with 10FT Hose, Push Button Electronic Spark Generating Powered by AAA Battery (not include） 4.5 out of 5 stars 139 Chinese, Generic Pencil Torch Technical Note March 12, 2007 Failure Mode: No flame No blue flame, torch flares, butane escapes very quickly Keywords: repairing torches, fixing torches, problem with pencil torch, unable to light pencil torch Introduction: If you have found this note and have not tried to open the torch, you are probably in luck.The VT 2-23 C propane torch is one of the most convenient to use items. It comes as a fully assembled product and is ready for use. This Red Dragon propane torch can be attached to any available refillable propane tank. However, I highly recommend you to go for the 20-pound cylinder with a hand-tighten tank fitting.Very simple solution for propane bottle torch when it wont light. Never throw these away! This is the older TS4000 model. Very simple solution for propane bottle torch when it wont light. Never ...Step 1 Turn the gas-release valve to the left to lock the opening up. This prevents any propane from escaping. Video of the Day Step 2 Clean off the opening on the propane torch with a soft, damp cloth. This removes any residue from the torch, ensuring the propane has a clear air-flow. Step 3 Turn the gas release valve to the right.That won’t be necessary. The melting point for aluminum is 1220 degrees Fahrenheit. Propane torches, even the weakest ones available, can produce over 2200 degrees Fahrenheit. Don’t worry about your propane torch potentially not being powerful enough to melt the aluminum.Bernzomatic TS4000 Trigger Start Torch 361524 The product is map-pro, trigger start torch, instant on/off trigger increases fuel savings & convenience, lock button keeps torch lit for finger-free use, replaceable brass tip, burn tip produces swirl flame for maximum heat output, pressure regulated to burn in all directions, cast aluminum construction provides added durability, for use with ...Weak Flame If your propane torch lights, but the flame is weak, first make sure that your fuel tank is not low. Replace the tank with another full fuel tank and see if the issue persists. If the flame is still weak on a full fuel tank, try cleaning the burn tube.4. Best value: Propane Torch Weed Burner, Blow. Get the best results with the most efficient torch head, jammer, and other weed care accessories. The Weed-O-Meter is an affordable, easily portable, and reliable way to check the status of your weed hoe or other gardening tools without having to stop and dig out your equipment. 5. Best durable ...Dec 23, 2020 · Here are the three most common types of torches for desoldering that you need to know about: Propane torches: Propane torches are the most appropriate for copper pipes or tubing. It is most commonly used to join copper pipes or fitting together. It is also the easiest type of torch to use. Brazing torches: Brazing torches are used for brass pipes. For this reason, they do not have a pressure regulator to control the flow of fuel through the torch. When these torches are inverted, the liquid propane works its way through the torch and extinguishes the flame. For work that requires inversion, we recommend a pressure-regulated torch, such as the MT535C, MT551C, MT555, MT560C, MT565C, or MT579C. My self lighting torch broke so I figured I couldn't break it worse so I tore it apart..and fixed it!Weak Flame If your propane torch lights, but the flame is weak, first make sure that your fuel tank is not low. Replace the tank with another full fuel tank and see if the issue persists. If the flame is still weak on a full fuel tank, try cleaning the burn tube.To unclog a propane torch, we need a pot, 1 or 2 liters of water, a stovetop, and your utmost attention. 1. Take A Medium-Sized Pot. It’s better if it’s not a pot that you use regularly. Fill 70% of the pot with water. Put it on the stove and raise the heat so that the water gets boiled quickly. 2.BernzOmatic Soldering Propane Torch Kit (14.1-oz) A multi-purpose propane torch designed for a variety of household projects including small diameter soldering, thawing, melting and heat application. The torch features a trigger-start ignition and an adjustable flame control knob. Kit includes a 14.1 oz. propane-filled cylinder. View MoreBernzomatic Torch Repair Parts – A Troubleshooting Guideline. April 14, 2023 by Terry A Hankins. Among the popular brazing torches, the bernzomatic torch is one of the best because of its durability and self-ignition capacity. It is suitable for professionals and at-home DIY projects as these torches are usually very long-lasting.The torch features a trigger-start ignition and an adjustable flame control knob. Flame control valve easily sizes flame and extinguishes when finished. Use only with propane fuel, such as the Bernzomatic 14.1 oz. Propane Hand Torch Cylinder. Versatile webbed flame completes a variety of household projects, including small diameter soldering ...Jul 10, 2022 · The VT 2-23 C propane torch is one of the most convenient to use items. It comes as a fully assembled product and is ready for use. This Red Dragon propane torch can be attached to any available refillable propane tank. However, I highly recommend you to go for the 20-pound cylinder with a hand-tighten tank fitting. My self lighting torch broke so I figured I couldn't break it worse so I tore it apart..and fixed it!Find Product Documentation. Hand Torches and Torch Kits. Utility Lighters. Fuel Cylinders. Brazing & Welding Rods. Accessories.Aug 9, 2007 · likely is not the torch. Two common mistakes made by beginners is to get the flame so close to the piece, or not keeping the torch at a 45 degree angle so that it burns all the oxygen out of the air and propane needs an exact amount to continue to burn. Even experienced people will slowly bring the back of the torch tank up which points Butane torches and propane torches may operate similarly, but they’re not shaped the same. A propane torch has a head that curves inward, whereas a butane torch has a straight head. The propane torch is shaped this way so the flame can be concentrated closer to the material. The closer the flame is to the material, the more precise the torch ...For this reason, they do not have a pressure regulator to control the flow of fuel through the torch. When these torches are inverted, the liquid propane works its way through the torch and extinguishes the flame. For work that requires inversion, we recommend a pressure-regulated torch, such as the MT535C, MT551C, MT555, MT560C, MT565C, or MT579C. May 2, 2023 · Buy on Amazon. While the Hot Max 500G Propane Torch comes in three size options, the star of the show is definitely the 500,000 BTU option. No wonder it’s called the ‘Big Max’. With that kind of strength to its flame, this propane torch seems more like a mad villain’s weapon rather than a household tool. While these are popular, we recommend ensuring that the Handheld Torches you consider have the right mix of features and value. Some common features to consider are Type and Uses Propane. Lincoln Electric Heating Torch Kit #KH825-03; BernzOmatic Heating Propane Torch Kit (14.1-oz) #TS3500K; BernzOmatic Soldering Propane Torch Kit (14.1-oz) #361546FlameNSky Posts: 7. I finally bought a weedburner. I must be doing something wrong with it. Out of 20 attempts, only once did it fire as it should. Every other time it just has a small flame. (relatively speaking) I was hoping someone might have an idea as to what I am doing wrong. I did check to ensure the tank was full with good pressure and ... Dec 28, 2021 · Clamp the item down tightly to ensure it doesn’t move around. Grab your propane torch next and train its flame on the item. Focus on a smaller spot first. Don’t spread the flame around because you’ll weaken it by doing so. Melting a piece of metal or welding something will take more time using this method. The longevity of your propane tank depends on the size of torch and propane tank. Most of our hand held torch kits require a 20# propane cylinder which will last from 45mins - 2 hours depending on a few different factors such as your torch kit size, outside air temperature, etc. The Mini Dragon™ operating on a 1# cylinder will last 1-2hrs. Step 5. Clean the lighter's burner chamber with compressed air. Insert the directional nozzle onto a can of compressed air. Hold the tip of the nozzle about 1 inch from the burner chamber. Direct several short blasts of air to remove any carbon deposits or debris. Advertisement.Fix the Igniter The igniter tends to be one of the more common issues when a propane torch won’t light. It is one of the primary moving parts and has a higher tendency to experience faults. Automatic and Instant On/Off Ignitions Open up the valve inside of your fuel cylinder.Posted: Wed Jun 11, 2014 11:04 am Post subject: Re: Propane Torch Won't Stay Lit. There's allegedly a lot of moisture in propane. Over time dust and garbage collects down in that sintered bronze looking doo-dad down below the head. I've heated that up good with another torch and things ran better for a while.the torches are needed more in winter, for thawing frozen yard hydrants. and everything else that screws up due to winter cold. First off, the torches never seem to burn properly in cold weather. I. guess the propane is cold so it likes to shoot out flat flames that spit. an sputter and generally be a pain in the ass to use.Some propane torches require a high-pressure regulator, while others require low-pressure regulators. There are also adjustable pressure regulators that help calibrate gas pressure as needed. All propane regulators do not have the same roles. While some are good for high-temperature brazing, others are good for low-temperature welding.Jan 19, 2013 · the torches are needed more in winter, for thawing frozen yard hydrants. and everything else that screws up due to winter cold. First off, the torches never seem to burn properly in cold weather. I. guess the propane is cold so it likes to shoot out flat flames that spit. an sputter and generally be a pain in the ass to use. Nov 25, 2019 · MAPP gas torches burn hotter than propane, making them a better choice for modern solder. Five to 10 seconds of heating with a MAPP gas torch is all that’s required before you can feed solder into most 1/2- to 3/4-in. pipes and fittings. Be careful, though. It’s easier to overheat a joint with MAPP gas. If the flux turns black and the ... The torch features a trigger-start ignition and an adjustable flame control knob. Flame control valve easily sizes flame and extinguishes when finished. Use only with propane fuel, such as the Bernzomatic 14.1 oz. Propane Hand Torch Cylinder. Versatile webbed flame completes a variety of household projects, including small diameter soldering ... Aug 15, 2004 · I use an old propane torch nozzle with a refrigeration fitting silver soldered on. The nozzles have a "check valve" to prevent reverse flow. It is on the tip and unscrews with ease. Turn the propane tank up side so liquid flows. Make an adapter to fit the 20 pound tank to a refrigeration hose fitting. Jul 7, 2023 · Containers should never be allowed to reach more than 125 degrees Fahrenheit. Store upright. Supposedly “empty” propane cylinders still hold some gas fumes, which are more dangerous than liquified fuel. Always treat fuel containers as if they were full, the same as all guns should be handled as if they are loaded.
Map-Pro and Propane Gas Swivel Blow Torch with Trigger Ignition A 360 degree vertical swivel torch with trigger-start A 360 degree vertical swivel torch with trigger-start ignition provide easy, 1-hand accessibility to large diameter soldering, brazing and heat treating jobs in tight spaces. The optimized swirl flame provides hot, fast ... . Zwry xnxx
The process of cleaning a propane torch tip is a simple cycle. To wipe an obstruct out of a propane torch, you should eliminate the spout and bubble it in water. When it’s thoroughly heated up, the buildup in the light should emerge from its agreement. Take the spout out, let it dry, and afterward reattach it to your light to finish your de ...Feb 3, 2023 · Propane Torch Issues. Propane Torch Won’t Light or Stay Lit; Weak Flame; Difficulty Starting; Torch Does not Work Upside Down; Steps to Fix your Propane Torch. 1. Check The Ignition Wire; 2. Clean The Burn Tube; Replace Your Faulty Unit; Recommended Torches. Bernzomatic TS8000; Bernzomatic TS3500 Jul 15, 2022 · Steps to Attach the Burner Torch to a Propane Tank. The propane cylinder will come with a plastic screw cap for extra safety. Make sure the valve on the propane cylinder is off. Then, you need to remove the safety cap. The regulator will have two male fixings on it. One of these screws into the propane bottle, the other screws into the rubber ... My Bernzomatic decided to stop working so I decided to see if I could fix it. Lighting in this vid is bad and I apologize!There's a smaller, lighter colored flame, then, surrounding that, there is a larger flame, usually darker in color. You want the tip of that inner flame just a little bit away from the joint. That is the hottest part of the flame. If you engulf the whole fitting by having the torch too close, it won't get hot enough with propane.The first step to fixing any igniter is to find the source of the issue. The first step will be to check if the igniter has any spark to it. This step is only applicable to those who have a self-igniting torch. But you will want to press on the button that typically ignites your gas line.My MagTorch brand self igniting propane torch started leaking propane inside the handle. In this video I take it apart, quickly discuss how it works and how...Dec 5, 2022 · If the igniter is working, but the torch still won’t light, the problem may be with the nozzle. The nozzle is the part of the torch that controls the flow of propane. Hence, if the nozzle is clogged, the propane will not come out of the torch. To clean the nozzle, remove it from the propane torch and then use a wire brush to remove any dirt ... Start with a small stream, then increase the gas flow after the torch is lit. It’s much safer this way. 2. Place a striker underneath the gas nozzle to light the torch. Propane torches generally come with a lighting device called a striker. It’s a gun-shaped device with a trigger you can pull to spark a flame.Bernzomatic TS4000 Trigger Start Torch 361524 The product is map-pro, trigger start torch, instant on/off trigger increases fuel savings & convenience, lock button keeps torch lit for finger-free use, replaceable brass tip, burn tip produces swirl flame for maximum heat output, pressure regulated to burn in all directions, cast aluminum construction provides added durability, for use with ...Bernzomatic propane torch won’t light properly. Clean or thaw the valve to fix. The valve on the tank it self could be blocked/frozen, but this is unlikely as you tried an alternate tank. Let the tank slowly warm up to room temperature to fix. The vent holes near the tip of the torch could be blocked, not allowing enough oxygen to mix with ...The longevity of your propane tank depends on the size of torch and propane tank. Most of our hand held torch kits require a 20# propane cylinder which will last from 45mins - 2 hours depending on a few different factors such as your torch kit size, outside air temperature, etc. The Mini Dragon™ operating on a 1# cylinder will last 1-2hrs..