Very spacesaving gas wall hung boiler for combined heating and warm water supply of appartments. Equipped with all neccessary functionalities for heating and warm water the turboBLOCK pro provides high individual comfort. Personal needs for heating or warm water can be fulfilled at all times. Fan-assisted exhaustion of flue-gas is done directly through an exterior wall, no additional measures are neccessary. Integrated safety circuits safeguard against maloperation by the user. Room thermostats as a means of automatic control increase the comfort of living even more. European comfort of living for everyone.