Wall-mounted gas Tankless water heaters are of two types - with pezorozzhigom and electronic ignition. In the case of pezorozzhiga run the Tankless water heater must be done manually by inserting the handle toggle switch (or pressing pezoknopku). Tankless water heater with electronic ignition will be launched automatically. The same thing happens if you, for whatever reasons, to cut off the gas and the Tankless water heater stop: the resumption of gas Tankless water heater with electronic ignition switch on their own, and for the resumption of the Tankless water heater with pezorozzhigom need to re-enable pezoknopku.
By way of removing waste gas wall-hung Tankless water heaters are divided into turbo (with fan) and Tankless water heaters with natural draft. When using turbo-products of combustion are removed with a blower built into the Tankless water heater. That turbo in Europe are set in those homes where the chimney is not provided, in which the Tankless water heater house on the right takes place in the kitchen. A departing gases are vented through dymootvodyaschy channel for which the wall is drilled a hole. Ducts for such a Tankless water heater is a special "double pipe", or, as some call it - "pipe in pipe". In the inner tube of a "chimney" under the pressure of the fan ejected outgoing gases, and the external tube enters the air.
Tankless water heaters with natural draft combustion products are removed, respectively, due to natural draft, which is formed in the chimney.