Immersion heater circulators are a specific type of circulators that aim to maintain the temperature and circulate warm liquid. Immersion heater circulators are useful in a variety of settings outside of laboratory research that includes hazardous waste management and biomedical studies. This device has also found its niche in the kitchen as a viable cooking technique that is based on cooking meat in lower temperatures.

Like circulators, immersion heater circulators are composed of a mechanical pump that circulates the liquid, temperature control systems and a temperature probe for accurate measurements. Most laboratory heater circulators can maintain liquids at boiling point and can easily do so within a short amount of time.