Smoke detectors and heat detectors are known to make use of two different types of technologies. Smoke detectors use ionization and photoelectric technologies while heat detectors make use of electro-pneumatic technologies. Smoke detectors are meant to determine if there is smoke inside a room. They can be compassionate, and they can immediately become triggered.
Heat detectors are considered to be more reliable because they can tell if the heat inside the room is so intense that it is not the typical heat of the environment anymore. Some people are concerned that the smoke and heat detector may not be too useful, but actually, they will work even if the climate is not also clean.
From the names of these two items, you can already guess what they are trying to detect. The heat detector will take note of the temperature inside the room. It will start to alarm when it reaches dangerous heat levels that may only be connected to fire or other problems within the room. A smoke detector is sometimes more sensitive.
It will detect smoke and alarm. It will show if there is combustion or soot that can be discovered within the room. Take note that smoke detectors can be so sensitive that it will automatically detect if someone is smoking in the room. This explains why there are some areas wherein smoking is prohibited.