Boiler is made of 3 mm steel and equipped with ¾ "diameter threaded couplings. Boiler dimensions are 980 mm in width and 430 mm in diameter. It is pressurized and can stand the pressures up to 5 ATM. To connect the boiler we recommend to contact Your local sanitary engineering support to prevent misunderstandings. Instructions are attached. The mounting can be placed both sides, horizontal and vertical mounting.