LAARS Commercial Hot Water Storage Tanks are designed for systems that require large volumes of heated water during periods of peak demand (i.e., most hotel guests take showers in the early morning, especially ones frequented by business travelers or situated near convention centers or large theme parks or tourist attractions). Several tanks can also be combined when larger quantities of stored water are necessary. All tanks are designed for 180°F water at a maximum hydrostatic working pressure of 150 P.S.I. and insulated and jacketed at the factory.