Type: stationary
Volume: 433 l
Exchanger power: 37/58 kW

The THERM OKC 500 NTRR/BP indirect stationary heating storage tank offers its users 433 l of hot water. The high-quality heating vessel is made of special thick metal sheet and is coated with nickel-free enamel. Together with magnesium anode, it ensures the long-term service life of the storage tank. The heater has two exchangers. It is possible to connect the heating source with high output or to create combination of the condensing boiler and an alternative source, e.g. solar system.

For connection to an external hot water source, the outlets located on the side of the storage tank are used. Large volume storage tanks for hot water are produced as a round construction and due to their parameters they are recommended for medium-sized and large-sized buildings and for water reserves for exchange stations, larger alternative energy sources, etc.


Energy Label
  • The storage tank for the heater is made from steel metal
  • Two exchangers for heating hot water with the option to connect two heat sources - for example, a condensing boiler and a solar system
  • The inside of the storage tank is enamelled
  • High-quality hard polyurethane foam is used for insulation
  • The storage tank includes an anode bar
  • Stationary heater for floor installation
  • Heating and utility water inlets are located on the side of the storage tank
  • The heater is fitted with temperature regulation of the heating water, a safety valve and an outlet for circulation
  • Large volume storage tank recommended for medium-sized and large-sized buildings, and for resolving hot water in cascade boiler rooms
Technical data Units THERM OKC 500 NTRR/BP
Class of energy efficiency - C
Permanent loss W 121
Volume of hot water storage tank l 433
Output of the exchanger kW 37 / 58
Height / diameter mm 1924 / 700
AWeight without water kg 158
Material - enamel
Order number - 14412