Heat Detector Spacing In Attic

Find the detector curve you need for your detector spacing and use the closest dimensions to what your space is.

Heat detector spacing in attic. The process we followed works the same. Then layout your detectors. The range goes from 15 feet up to 50 feet 4 6 meters to 15 2 meters for heat detector spacing. See specification table for details.

Fixed temperature the fixed temperature function reacts to heat by responding to a specific temperature setting. The us fire administration fema recommends that you have a heat detector rather than a smoke alarm in your garage. Spacing ranges between 20 feet to 50 feet. Rate of rise units have a wide spacing allowance of 50 foot centers.

I have seen some spacing at 15 feet but not very often. Another location in a home where you should have a heat detector rather than a smoke alarm is the attic. That means the detector can cover a space 900 square feet 30 feet x 30 feet. With heat detectors this figure is 7 5m x 7 5m giving an area of coverage of 56m per device which is rounded down to 50m.

Bs 5839 states that detectors should be sited no less than 0 5m from a wall. Any obstruction which is less than 300mm from the ceiling should be treated as a wall thus requiring a detector either side of the obstruction. Sidewall mounted heat detector shall be located between 4 and 12 inches from the ceiling. For our purposes we will go with a heat detector spacing of 30 feet.

Regardless of the detector s listed spacing the process of properly spacing remains the same. Smoke alarms are not designed for garages and attics and are much more likely to fail than a heat detector.