Instantly hot water - The first Vaillant product innovation in 1894, the floor-standing water heater - also known as the Geyser - served one purpose only: to provide hot water. Still today, gas water heaters offer the right answer in a wide variety of applications. In older homes, atmoMAG or turboMAG are often the first choice, because each satisfies customers’ demands both for comfort and economical operation. Their performance in bathrooms and kitchens, where they are usually found, is always unobtrusive, both in design and operational noise level. They perform reliably and without keeping you waiting.