A vacuum hot water boiler utilizes the low boiling point of water at low pressure to quickly heat the heat medium water filled in the sealed furnace, causing the heat medium water to boil and evaporate high-temperature steam. The steam condenses on the heat exchange tubes to heat the cold water inside, achieving the purpose of supplying hot water.

The vacuum hot water boiler is equipped with industrial burners with excellent technical performance, which adopt advanced technologies such as automatic proportional adjustment of combustion, automatic adjustment of water supply, program start stop, and fully automatic operation. It also has high and low water level alarms and automatic protection functions such as extremely low water level and shutdown. This type of boiler has the characteristics of compact structure, safety and reliability, easy operation, rapid installation, low pollution, low noise, and high efficiency.

Schematic diagram of heat conversion in vacuum boiler:

Oil (natural gas) → Combustion → Heat medium water → Boiling steam condensation heat transfer (vaporization → condensation → vaporization) → Heat exchanger → Heat conduction → Water

Low nitrogen vacuum hot water boilers have the characteristics of compact structure, safety and reliability, easy operation, rapid installation, low pollution, low noise, and high efficiency. They are widely used for hot water and heating in facilities such as enterprises, hotels, hospitals, office buildings, and civil buildings.