A blast lamp is a powerful tool that emits a bright light to aid in various industrial or construction jobs. However, there are several other names for this handy device that can be used interchangeably. For instance, some people may refer to a blast lamp as a blowtorch or welding torch. Others may use the term "gas lamp" or "heat lamp" to describe this tool. Another common synonym for a blast lamp is a propane torch or acetylene torch, both of which use different types of fuel. In short, it's always best to clarify the specific type of tool or lamp one is referring to avoid confusion.