noun

A boiler is a special machine that heats up water and turns it into steam. Steam makes things hot, like boiling water on the stove, but a boiler can make a lot more steam than a pot or pan. Boilers are used in many different places like hospitals, factories and even in some homes.

Example

1. I need to get my boiler serviced before the winter season starts.
2. My old boiler is not working properly, so I need to buy a new one.
3. We have installed a brand new boiler in the office building.