Hot-Shot 320 and 400 pipe-thawing machines from General Pipe Cleaners thaw pipes in minutes to eliminate tearing up floors, breaking through walls or digging around pipes in frozen ground. The Hot-Shot 320, weighing just 30 pounds, generates 320 amps of thawing power to thaw up to 100 feet of 1 1/2-inch pipe. The Hot-Shot 400 has a dual-level output, and its 400 amps can thaw frozen 1 1/2-inch lines up to 175 feet long. On jobs with only a 15-amp breaker available, the unit can be switched down to 320 amps and pull just 14 amps. The operator attaches pipe clamps to the frozen pipe section, plugs the machine in to any convenient 115-volt receptacle, and in a few minutes the frozen pipe is thawed. The compact machine comes with a heavy-gauge steel case. 800/245-6200; www.drainbrain.com.