What is tankless boiler?

A tankless boiler, also known as an on-demand boiler, heats water directly without the use of a storage tank. When a hot water tap is turned on, cold water travels through a pipe into the unit, where it is heated by gas or electricity as it passes through. This system provides a continuous supply of hot water, making it efficient and space-saving, as it eliminates the need for a bulky storage tank. Tankless boilers are popular for their energy efficiency and ability to meet varying hot water demands.