This article presents the results of an experimental study and evaluation of the application of a method for optimizing fuel use by the ratio of the power of a boiler unit in a block-modular boiler house and setting the power of a burner on the combustion steps. As a result of the study, the criteria for the application of this method to the existing block-modular boiler house, the factors having the greatest influence on the efficiency of the boiler units are determined.

Keywords: heat transfer intensification, optimization of fuel use, cogeneration mode, energy production, combustion mode, boiler, condensation, gas flow turbulization, waste heat boiler