Water heaters with open combustion chamber

Open (atmospheric)

— it is the simplest type of combustion chamber. The air necessary to maintain the flame, such chambers are taken directly from the room in which the water heater is installed, and the combustion products are removed due to natural draft. The advantage of an open design is simplicity and low cost, and the main disadvantage is the exactingness of installation conditions: the room must be large enough, with good ventilation, and the chimney must be high (to create sufficient traction). Before purchasing such a water heater, it is necessary to clarify the specific requirements and make sure that the installation location meets them.