One special type of device for heating water is called a thermostatic water bath. It is used in several environments, such as laboratories and hospitals, where precision heating is crucial. Scientists, for example, use Constant Water Bath T25 to make sure samples are held at a consistent temperature during experiments. This is how they control for the machine to make accurate measurements. A thermostatic water bath can be set to whatever temperature the user desires and will hold the water at that temperature — even if something else changes around it. This is very handy when you need to heat things gently and uniformly.