Low and medium temperature heaters have wing shape heating elements and hightemperatureheater has tubular heating elements.
低、中温型加热器采用翅片式电热元件,高温加热器采用管状元件。
2
A high-temperature cut-out isolates power supply to the heater.
高温断流器切断给通往热器的电源。
3
The system produces most of its hot water, but if more is needed, or if the temperature is not high enough, the house has a supplemental, solar-powered water heater.