blow torch

Culinary and handheld torches: butane. Oil-burning outdoor torches: kerosene or lamp oil. Some heavy-duty or portable torches are described as propane-powered.

Product descriptions typically list a full flame time of about five hours or more per fill.

Common features listed include push-button or electronic ignition and built-in safety locks to help prevent accidental ignition.

One heavy-duty torch listing cites a maximum flame output of up to 3,600°F. Other product descriptions do not specify flame temperature.

Outdoor torches: various metals, commonly stainless steel. Handheld culinary torch components (for example the flame tube) are described as aluminum alloy.

The listed culinary torch holds 10G of butane and is described as running about 30 to 60 minutes of continuous use.