The series of indirect stationary heating storage tanks for hot water marked “With option to heat by electric current” is named THERM OKCE. This provides the option to electrically heat water using the element in the lower storage part. The THERM OKCE assortment of enamelled storage tanks provides a volume of 100 to 300 litres of domestic water. Storage tanks with a volume of 200 litres and more have two exchangers for heating water from an external source or a combination of various sources.
There is one exchanger for the conversion of energy from heating water to hot water in the NTR storage tanks. Two exchangers are used in storage tanks with large NTRR volumes. This enables to heat water from a source with a higher output or to connect two various heat sources to each exchanger. From the THERM OKCE 200 series a, combination of gas boiler, alternative energy source or solar system is possible.