Heat Detector

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.

Rate of rise heat detectors, commonly referred to ROR detectors, go off when they detect a sudden change in temperature. You can set the rate of temperature increase at which the alarm goes off, and any sudden temperature change that raises the temperature quickly will set off the alarm. You can also set the alarm to go off whenever the temperature rises at a steady rate. For example, if the alarm is set to go off if the temperature suddenly raises 15 degrees but the temperature starts raising by only 10 degrees every minute, the heat detector will register that this is an unusual change and go off after a few minutes.

A fixed temperature heat detector, on the other hand, goes off once the ambient temperature in the room goes above a certain mark. Most of these detectors don’t go off until the ambient temperature is between 115 and 135 degrees Fahrenheit.

Neither type of heat detector is better than the other. Some are more suited for certain rooms. A rate of rise heat detector placed too near an oven may go off whenever you open the oven door, for example, because the escaping heat will quickly raise the temperature in the area around the oven. In a room full of highly combustible items, however, a rate of rise heat detector may actually be better since a fixed heat detector may experience what is known as thermal lag.

As stated above, a heat detector is not a replacement for a smoke alarm. In fact, you need to continue to use a smoke alarm in your home for fire warnings. However, a heat detector can be useful for those areas where you shouldn’t install a smoke alarm, such as in the kitchen, the laundry room, your attic, or the garage. Smoke alarms don’t work so well in these areas, but heat detectors do work well here. In fact, they can often alert you to a fire before the smoke reaches your smoke detectors and give you a little extra time to get out of your home or attempt to put out the fire.

These heat detectors can be moved around very easily and can be installed anywhere in your home. They’re also not linked together so when one alarm goes off, you’ll know exactly which room is suddenly hotter than normal. This can be very helpful when evacuating your house. Heat detectors add yet another layer of protection for your home, but if you’re concerned about fires, they may be well worth the investment.

This Heat Detector Review is Written/Updated on Jan 20th, 2010 and filed under Home Automation. Both comments and pings are currently closed.

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