DHW heat exchanger for gas boilers OKC 100 NTR/HV with spiral coil 1.0 m², enamel-coated 1108706101

Domestic Hot Water (DHW) Heat Exchanger for Gas Boilers

This 100-liter DHW heat exchanger is an ideal solution for year-round hot water supply from a gas boiler. Its design has been optimized for mounting beneath the boiler, thanks to top-mounted pipe fittings—simplifying installation and saving space in the boiler room. The large coil surface area (1 m²) ensures efficient heat transfer, resulting in rapid water heating and enhanced user comfort.

Construction and Durability

The OKC 100 NTR/HV heat exchanger features a robust steel construction coated with high-quality Crystal Enamel finish. This coating significantly enhances corrosion resistance, especially in areas with hard or chlorinated water—a common issue in many regions. Additional corrosion protection is provided by a magnesium anode, which extends the unit’s service life. The round tank shape promotes uniform heat distribution and minimizes energy losses.

Efficiency and Savings

Modern ThermoGen4 insulation dramatically reduces heat loss to the environment, resulting in lower operating costs and improved energy efficiency—rated at energy efficiency class B. The absence of an electric heating element eliminates additional energy consumption, as all heat is generated solely by the efficient operation of the gas boiler. This heat exchanger is specifically designed for use with gas boilers, enabling optimal utilization of boiler capacity and reducing domestic hot water heating costs.