Miller Electric 's Trailblazer welding generator contains two separate generators. One provides 100,000 watts of useable peak power — enough to power another welder. The other is a 4-pole, 3-phase generator that creates smooth arc performance. With two generators, two operators can work from the machine without interference from the other. A redesigned airflow system is said to eliminate power drops due to overheating. The welder works more quietly than previous models, says Miller. Fuel-tank capacity is 12 gallons. Estimated list price: $4,100 to $4,517.