Using Thermo-T, energy can be recovered and returned as process makeup air, used to preheat combustion air or used for plant or office heating. Designed to recover heat from energy-consuming processes up to 2,000°F (1,083°C), the shell-and-tube heat exchanger offers fully adjustable tube size and spacing as well as both single-pass and multi-pass models. Tubes are mechanically expanded into and then fully welded to the tubesheet, which provides a double layer of protection to ensure against cross-contamination.