A water heater that's right for you. The water heating industry in North America has changed greatly. Where we used to be faced only with the decision of what size tank to buy, we now consider energy efficiency and technology. That’s where tankless, often called “on-demand,” water heaters come in.
A huge technological achievement, these innovative systems show significant energy savings over tank-type water heaters (which also means they save you money). Their much-smaller size saves valuable living space as well.