Abstract: The invention relates to a gas burner system with at least one gas burner comprising: i) a mixing chamber (2) for supplying fuel gas and air; ii) a closed combustion chamber (3) located under the mixing chamber (2) and separated therefrom by a ceramic burner plate (16); iii) a jacket (30, 31) surrounding the combustion chamber (3) and heatable by radiation with an inlet (43) and an outlet (44) for liquid for heating, which jacket (30, 31) is provided with standing fire tubes (35) connecting onto the combustion chamber (3); iv) an outlet (46) for combustion gases; and v) combustion control means (17) situated in the combustion chamber (3) in the vicinity of the burner plate (16) which are connected to a control system.