This is common for butane- or propane-fuelled gas torches, but also applies to the older, large liquid paraffin (kerosene) torches such as the Wells light. The larger torches may have a heavy fuel reservoir placed on the ground, connected by a hose. Blowtorches are typically a single hand-held unit, with their draught supplied by a natural draught of air and the liquid fuel pressurized initially by hand plunger pump, then by regenerative heating once the torch is in operating state. The term "blowtorch" applies to the obsolescent style of smaller liquid fuel torches. Torches are available in a vast range of size and output power. The term "blowtorch" is commonly misused as a name for any metalworking torch, but properly describes the pressurized liquid fuel torches that predate the common use of pressurized fuel gas cylinders. Liquid-fueled torches are pressurized by a piston hand pump, while gas torches are self-pressurized by the fuel evaporation. Their fuel reservoir is disposable or refillable by exchange.
This is distinct from modern gas-fueled torches burning fuel such as a butane torch or a propane torch. It runs on any version of Microsoft Windows (sorry, no Mac version available).An old-fashioned kerosene/paraffin blowtorchĪ blowtorch, also referred to as a blowlamp, is an ambient air fuel-burning gas lamp used for applying flame and heat to various applications, usually metalworking.Įarly blowtorches used liquid fuel, carried in a refillable reservoir attached to the lamp.
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