For citations:
Usenkov R.A., Kokhanova S.Ya., Avramenko S.M., Ivanov V.E. Using a heat pump to ensure the operation of the heating and hot water supply system. Title in english. 2021;(4(125)):117-122. (In Russ.) https://doi.org/10.34680/2076-8052.2021.4(125).117-122