1) бойлер, водонагреватель, подогреватель сетевой воды, водогрейный котёл
2) отопительный котёл; парогенератор
- automatic boiler
- balanced flue boiler
- bitumen boiler
- central heating boiler
- closed circuit boiler
- coal-fired boiler
- combination boiler
- condensating boiler
- convertible boiler
- cross-tube vertical boiler
- direct-vent gas boiler
- domestic boiler
- dual fuel boiler
- electrode boiler
- fire-tube boiler
- gas boiler
- gravity feed boiler
- heating boiler
- high pressure boiler
- horizontal boiler
- hot water boiler
- independent boiler
- multifuel boiler
- natural circulation boiler
- oil-fired boiler
- packaged boiler
- pressure-fired boiler
- pulverized-coal fired boiler
- range boiler
- sectional boiler
- shell type boiler
- solid fuel boiler
- standby boiler
- steam boiler
- summer boiler
- vertical boiler
- waste heat boiler
- water-tube boiler