Gas wall-mounted single-function condensing boiler VU INT 1206/5-5 ecoTEC plus 0010010788

Power and Efficiency in a Compact Housing

This gas condensing boiler from the ecoTEC plus series is a unit with significant heating potential, designed to supply heat to large buildings or cascade systems. Its key feature is a wide power modulation range, starting from 24.7 kW and reaching an impressive 123.4 kW (measured at a temperature difference of 50-30°C). This operational profile ensures that the unit not only handles heating for buildings with high energy demands but, thanks to precise regulation, can also adapt to lower loads, resulting in reduced gas consumption. Efficiency reaching 110% under condensing conditions and 100% under standard conditions means the unit recovers energy from water vapor in flue gases, maximizing the efficiency of the entire heating system.

Application and Installation Flexibility

As a single-function model (heating only), the VU INT 1206/5-5 is suitable where pure heating capacity is required without an integrated domestic hot water tank. It is an ideal solution for installers designing systems for large single-family homes, apartment blocks, or public utility buildings. In cascade configurations, several such boilers can combine forces to deliver a total heating output of up to 720 kW. For installers, the construction of the heat exchanger made from stainless steel is also significant – this material is characterized by high resistance to corrosion and mechanical damage, which is crucial when operating with condensate of low pH. As a result, maintenance of the heat exchanger is less frequent, and the unit's service life is extended.

Dimensions and Installation Conditions

Despite its high power, the unit maintains a relatively compact wall-mounted form. Its dimensions are 960 mm in height, 480 mm in width, and 602 mm in depth. This configuration allows installation in typical boiler rooms or technical rooms without the need to build specialized ventilation cabinets or expand existing niches. These dimensions are optimal for service access – reaching internal components does not require removing the entire unit from the wall. The unit is equipped with an eBUS interface, facilitating integration with Vaillant control systems and other building automation components.

It is worth noting that with such a wide power modulation range, the unit effectively handles various types of heat emitters – from traditional radiators to modern underfloor heating systems. The stainless steel heat exchanger requires only standard maintenance of flue gas cleanliness and verification of the gas system's tightness in accordance with safety standards. This is a robust solution for installations requiring reliability and high energy efficiency.