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. 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. 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. 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.

Bionic Burner Deluxe Weed Killer with Wheels - HSN Bell + Howell Bionic Burner Deluxe Weed Killer with Wheels - HSN

Construction: Look for steel construction for greater durability and brass valves that resist corrosion. 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. 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. Weed torches aren't just for weeds. Small models are great for lighting a barbecue or campfire. Come winter, high-output torches can be used to melt snow and ice from your driveway. Types of weed torches Interchangeable bell: Heavy-duty weed torches have a large, flame-producing area on the end of the rod called a "bell." Sizes vary from 1.9 to 7.6 centimetres. On many models, the bell is a fixed size, though some are interchangeable.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. Weed torch features to consider 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. More advanced weed torches include features that you may or may not find useful for your purposes, such as the following: Lightweight weed torches have a small gas canister attached, usually 400 to 450 grams, 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. 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.

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Heavy-duty weed torches attach by hose to a propane tank that weighs up to 10 kilograms. 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.