Pool heat exchangers by Nordic Tec - made of Stainless steel
Tubular exchangers or so called "shell & tube" units. They are mainly intended for swimming pools and large water tanks, in systems where continuous and massive water circulation takes place. A significant advantage is low pressure loss compared to plate heat exchangers and the lack of use of copper welding. B-Line heat exchangers by Nordic Tec are entirely built of stainless steel.
Designed for swimming pools with not salted water. If you are looking for a heat exchanger for salt or sea water - you need a titanium heat exchanger.