HIGH THERMAL EFFICIENCY- Turbulent-flow design moves the two media in opposite directions and creates strong turbulences for superior heat transfer rates and efficiency. Our heat exchanger series have been certificated by CE. Dimension: 7.8' x 3' x 3.7' / 20 cm x 7.8 cm x 9.5 cm. ENERGY OPTIMIZED - This heat exchanger stainless can heat water to the preset temperature, which is super energy-saving with no electricity consumption and no oxygen consumption. ROBUST CONSTRUCTION- This 30 plate heat exchanger features 316L stainless steel sheets, which are brazed together at the edges and the matrix of contact points for a reliable and rugged part to form a durable, integral piece that can withstand high pressure and temperature. Four thickened MNPT ports for your easier installation