The Hot-Shot 320 and Hot-Shot 400 pipe thawing machines from General Pipe Cleaners safely thaw pipes in minutes without tearing up floors or walls, digging around pipes in frozen ground or using hazardous blow torches, the company says. The Hot-Shot 320 generates 320 amps of thawing power to thaw up to 100’ of 1-1/2" pipe — yet weighs just 30 lbs. The Hot-Shot 400 generates 400 amps of thawing power to thaw frozen lines up to 175’ long and 1 1/2" in diameter. Attach the clamps to the frozen pipe section, and plug the machine into any convenient 115-volt outlet. Safety features include thermal overload protection and circuit breakers.