Pursuant to the contract, the specialists of Wellons.RU LLC, together with the construction and installation company SMU-1 under the direction of Andrei B. Gaberman, carried out the restoration of the refractory lining of the boiler furnaces and the lining from October 11 to October 18, 2016 boiler combustion zones (convective part). Due to the fact that the destruction of the refractory is of a similar nature for each furnace, the repair results are shown to restore the most pronounced defects of the refractory lining.