Profile: Cemline Corp. manufactures tanks, pressure vessels, packaged water heaters, unfired steam clean generators, and replacement tube bundles. Our products are used for the storing and heating of water and liquids in plumbing and heating systems and industrial processes. Our water heater units can produce high water volumes with temperature control of +/- 4°F at fluctuating building loads. Our solar water heater is a dual energy source unit using either boiler water, steam, or electric as the back-up energy source for times when solar energy is not enough or unavailable. We provide our products under the brand name Stonesteel™.