A Heat Detector is a small device that detects changes in the temperature. Generally, heat detectors only set off alarms when the temperature gets too hot, not cold, thus the term heat detector. In some ways, a heat detector is like a smoke detector in that it can alert you to a fire. However, a heat detector does not detect smoke, so it’s not a full replacement for a smoke alarm. Instead, a heat detector only notes changes in temperature. Once it does detect a change in temperature, a heat detector can automatically activate a sprinkler system or set off a loud alarm to alert you to a fire. there are two different types of heat detectors. The first is called a rate of rise detector, and the second is a fixed detector. The most expensive and complex heat detectors actually combine both types of detectors so the alarm will go off if either condition is met. However, these combination detectors are not always the best option, so don’t always assume that you should buy them over the single type detectors.
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