Where Should I Install My Honeywell SiXCOMBO?

You should install your Honeywell SiXCOMBO high up on a wall or on the ceiling. If wall-mounted, it should be at least six (6) inches below the ceiling. If ceiling-mounted, it should be at least 12 inches from any wall. Good spots include outside of bedrooms and inside large central rooms.


The Honeywell SiXCOMBO is a wireless combination smoke/heat/CO detector. It is designed for use exclusively with the Resideo Lyric Alarm System. The life-safety sensor is part of the SiX Series Lineup, and it communicates wirelessly at a frequency of 2.4 GHz. It uses 128-bit AES encryption to prevent any hacking or takeover attempts.

As a combination sensor, the SiXCOMBO needs to be in a location where it can reliably detect smoke, high heat, and carbon monoxide (CO) gas. Carbon monoxide actually mixes readily with the air, so you can expect the SiXCOMBO is perform that function reliably regardless of where it is placed.

But smoke and heat detection is a different story. Smoke and heat both rise. For accurate fire detection, you want to have your SiXCOMBO high up off the ground. You should have it high on the wall or on the ceiling. This will give it the best chance for quickly detecting a fire. Remember, the sooner the sensor can detect a fire, the better.

There are also some general guidelines for choosing a location for the SiXCOMBO. You should have it in an open area free of obstructions. If it is on the ceiling, it shouldn't be directly next to a wall. If it is on the wall, it shouldn't be immediately next to the ceiling. You should never cover up the sensor to prevent smoke or CO from reaching it.

You will want the SiXCOMBO in a location where it serves the most effective purpose. Remember, this is a life-safety sensor, so you should put it near places where people are most vulnerable. Since many fire-related and CO-related deaths occur while people are sleeping, installing the sensor outside of bedrooms or other sleeping areas is always a good idea.

Another good location is a hallway. This is because smoke or CO gas will need to travel through the hallway to reach other areas of the building. Living rooms and other large central areas are also good locations because it is likely that smoke or CO gas will eventually make its way to that location. It is also recommended that you have at least one smoke detector and CO detector on each floor of the building.

Finally, there are some locations where you should not use a Honeywell SiXCOMBO. One area is inside a bathroom, as the high levels of moisture could cause problems for the sensor. Other poor locations include in an attic or in the garage. These areas tend to get pretty dusty, which could cause the sensor to experience issues.

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