Weldmark® also offers a very popular heavy-duty high output propane heating torch. This torch is rated at approximately 500,000 BTU’s and includes the torch assembly with valve, 10′ hose, flow adaptor and spark lighter. This heavy-duty torch can be used for various activities such as weed burning, exterior drying, and general heating, asphalt/tar road repair, and roofing applications. No regulator is required.