A geothermal heating and cooling system, which consists of an extensive network of underground pipes called a loop, circulates a mixture of water and antifreeze through the loop.

Open loop cooling systems use water to cool engines directly, while closed-loop systems use marine coolant and a heat exchanger to keep engines cool.

How often does an existing open condenser water system, or some other type of open water system, get reused as part of a building renovation project and/or mechanical system upgrade? It happens ...

An open-loop cooling system, also called raw water cooling, draws water directly from the body of water the boat is floating in, whether it's saltwater or freshwater.