Bosch Thermotechnology North America now offers the WST line of enameled-steel indirect storage tanks and the SST stainless-steel line of indirect storage tanks. The WST line is available in three models with capacities of 50, 80 and 119 gallons. The tanks feature an integrated solar pump station mounting bracket, an electrically isolated 4.5 kW heating element and a large surface area heat exchanger. The first-hour recovery for the 50-, 80- and 119-gallon tanks is 67, 90 and 167 gallons,