Laars Commercial Electric Tankless Water Heaters, Powered by Keltech, are available in four different models and configurations for commercial and light industrial use. Features include a PID infinitely modulating control which holds temperature as demand changes; Incoloy 800 low-watt density elements that enhance durability, heat transfer and resistance to scaling; low water flow activation; low water pressure drop; brass/copper heat exchangers that are NSF/ANSI 372 certified for lead-free; and space saving size, with only three-square feet of space needed for 144 kW (491,000 Btu/h).