An adjustable thermostat automatically turns the heater on when the temperature drops below your set temperature and off when it rises above your set temperature.

Replace the thermostat on your water heater.

Also called tankless water heaters, these provide hot water on demand and take up less space than heaters with a tank.

With more than three times the pressure rating of standard heat exchangers, these are often used for high-pressure condensing, evaporating, heating, and cooling. They are also known as shell and tube heat exchangers.

Also known as shell and tube heat exchangers, these transfer heat using liquid or steam that flows through the shell to heat or cool liquid in the tubes.

Stacked, corrugated plates maximize contact with liquid or steam flowing through these brazed plate heat exchangers for faster heat transfer than shell and tube heat exchangers.