Models LX-200 and LX-50 provide on-demand steam generation and fuel savings. The once-through fintube design heats a smaller volume of water more efficiently. Combined with built-in precision microprocessor-control technology, the boilers help conserve fuel. The fintube design also enables the boilers to generate full steam from a cold start in 5 min or less. The modular on-demand steam capability makes them suited for multi-boiler installations in which boilers can be turned on or off selectively. This allows users to efficiently manage changing load conditions rather than idling the boilers in standby mode and consuming energy.