Mazurenko A, Denysova A, Balasanian G, Klimchuk A, Borysenko K. Improving the operation modes efficiency in heat pump systems of hot water supply with the two-stage heat accumulation. EEJET [Internet]. 2017Feb.23 [cited 2024May10];1(8 (85):27-33. Available from: https://journals.uran.ua/eejet/article/view/92495