бойлер(трубчатый теплообменник для подогрева воды паром или горячей водой); котёл(комплекс устройств для получения пара под давлением или горячей воды, обычно за счёт сжигания топлива); варочный котёл(для варки целлюлозы)
котельное оборудование(Boilers: This is a great option for apartments as well. These are designed to heat the entire apartment building rather than just individual apartments. Boilers generate heat from either natural gas, electricity, or oil. Boilers are generally the most efficient heating for apartments, as the hot water or steam is distributed quickly and evenly throughout the building. However, boilers are extremely cost-intensive and require large, dedicated spaces and regular heating services to ensure they operate safely and efficiently. (clarksheatingandair.com)ART Vancouver)
