A powerful weed torch that works well for a variety of tasks and is reasonably priced.
Reaches 500,000 BTUs, making it well-suited for anything from ice melting to melting asphalt. Compatible with a range of propane tanks. The 10-foot hose allows a good amount of maneuverability. Fully assembled.
Works best in short bursts, as the flame may dissipate if the trigger is held down.
A push-button weed torch that is designed for ease of use with precision control.
This model features a trigger to allow for push-button ignition. The 1-inch nozzle and adjustable control knob allow you to target tight areas and spot-treat. The ergonomic foam grip and balanced, lightweight design are appreciated.
Some users felt the flame trigger was located too close to the flame.
One of the better weed torches for general use around the yard or on farms when something larger is required.
Offers great control through the use of its long handle. Easy to hook up and secure to most propane tanks. Comes with a unique booster feature to temporarily increase flame intensity.
Turbo blast lever can stick in the open position, requiring some extra force to cut the flame off.
A 50,000-BTU weed torch that has all the necessary features to get the job done.
Contains stainless steel, so it can withstand higher temperatures. While it can easily kill weeds, it is hot enough to melt ice patches and repair blacktop as well. The sleek design allows it to take up less space when it is being stored.
The design isn't as balanced as a curved model, which can lead to fatigue setting in a little more quickly.
This fully assembled weed torch is a great, affordable option that lets you get to work right away.
A no-frills model that is lightweight and easy to use, making it a good option for home use and small jobs. With an output of 24,000 BTUs, this is a reliable choice for small weeds or melting a thin layer of ice.
Some customers found the self-lighting mechanism unreliable. Only compatible with 1-pound propane tanks.
We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.
Using weed torches for weed removal has become popular again as people try to reduce or eliminate harmful chemicals that might pollute the soil or groundwater. Torches are also a lot easier on your back than pulling weeds by hand.
There are plenty of weed torches out there, so how do you choose the right one?
First introduced in the 1940s, weed torches (or weed burners) have changed very little in the years since. All of them, whether light or heavy, use propane gas for fuel to kill weeds.
Lightweight weed torches have a small gas canister attached, usually 14 or 16 ounces, though it's possible to adapt some models for larger tanks if necessary. These are best used for spot weeding along drives and paths and between rows of vegetables.
Entry-level, lightweight weed torches are quite simple devices. You screw on a gas canister, open an on/off valve, and light the torch using a spark igniter. The flame intensity is constant. Notably, lightweight weed torches can get just as hot as heavy-duty models.
Heavy-duty weed torches attach by hose to a propane tank that weighs up to 20 pounds, and sometimes more. These torches vary in size from those intended for a homeowner with a large yard to commercial models used by farmers, landscapers, and municipal cleaning crews.
Basic heavy-duty weed torches are very similar in operation to lightweight models. Some have flow valves or regulators to keep the gas pressure constant.
Power: With these devices, power is measured in British Thermal Units (BTU). Small models start at around 25,000 BTU, and 100,000 BTU is common for larger models. The most powerful weed torches we looked at reached 500,000 BTU.
Interchangeable bell: Heavy-duty weed torches have a large, flame-producing area on the end of the rod called a "bell." Sizes vary from 3/4" to 3". On many models, the bell is a fixed size, though some are interchangeable.
Hose length: If you've got a large tank, you want a good hose length so you're not constantly having to lift and move it. Good ones are ten feet, though we’ve seen as short as five. It’s possible to buy and fit a longer hose, but the drop in pressure might mean your weed torch doesn't work properly. Backpacks are available that support a ten-pound propane tank, giving you unrestricted mobility.
Construction: Look for steel construction for greater durability and brass valves that resist corrosion.
Certification: The Canadian Standards Association (CSA International) and Underwriters Laboratories (UL) are highly regarded independent bodies that test and certify all manner of mechanical, electrical, and gas products. The logo of either one is a sign that the product has met certain standards of construction and safety.
More advanced weed torches include features that you may or may not find useful for your purposes, such as the following:
Variable flame control
Built-in ignition (press a button to light)
Extendable handle for extra reach
Squeeze valve (trigger) to increase gas flow and flame strength (can be retrofitted onto some models)
Weed torches vary in price depending on quality and features. You can expect to pay from $25 to $400 for one.
Inexpensive: Cheap weed torches can be found for around $25 to $40, but we don't recommend them. The durability can be questionable, and you don't want safety problems where gas and flame are concerned.
Mid-range: High-quality lightweight models start at about $40, so you're not paying a lot more for something from a trusted brand. Most larger, heavy-duty weed torches for home users cost from $70 to $100. With systemic herbicides costing $20 or more for a 32-ounce bottle, a weed torch isn't just an environmentally friendly way to control unwanted plants, it's kinder to your wallet, too!
Expensive: Commercial units cost considerably more. Those with backpacks for holding a gas tank range from $250 to $400.
Keep a fire extinguisher or water handy. The flame from a weed torch can be almost invisible – particularly in bright sunlight. It's good practice to have a fire extinguisher or bucket of water handy in case you accidentally set light to decking or fencing. Never use a weed torch near tinder-dry plant matter, hay, or straw.
Do not use matches to light your weed torch. It puts your hands too close to the flame.
Protect plants with a garden spade. When you have weeds you want to burn that are near plants you want to protect, a garden spade makes a useful shield.
Never use a weed torch on poisonous plants. Doing so can release the toxins into the air, so you risk getting them on your skin or breathing them in.
Q. How long do I need to keep the flame on the weeds?
A. People who are new to weed torches sometimes think you need to scorch the plant to a crispy stump. You don't. What the flame actually does is boil the water in the plant's cells. The cells collapse and the weed dies.
With torch temperatures of a couple thousand degrees Fahrenheit, the job is usually done in less than a second. Moving the flame fairly rapidly over your weeds is not only effective but also much safer than trying to turn them into a pile of ash.
Q. I've heard that weed torches won't work on perennial weeds. Is that true?
A. Weed torches only kill the part of the plant above ground, so perennial weeds can come back. The solution is to hit them as soon as they reappear. You'll need to do it several times, but with no leaves for photosynthesis, the roots will eventually die. It does require patience, but many people think that's preferable to pouring herbicides into the soil, particularly around vegetables.
Q. Can I use a weed torch to kill weeds in my lawn?
A. You can, as long as the grass is lush and green. Healthy grass has an outer layer that protects it, so it's surprisingly resistant to burning. Don't hold the flame over the weed for too long, though, because your grass will scorch eventually. Treat the weeds quickly, then check back after a few days and retreat if necessary.