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Summary: Learn how to mark for drill holes when installing a smoke detector base, and other DIY home fire safety tips, in this free home improvement and maintenance video.
"Hi! This is Jon on behalf of Expert Village. In this video clip I will be showing you step 2 for installing a smoke detector. The next thing that we need to do is remove the base from the smoke detector. Typically you can do this by rotating it counter clockwise. Now this is going to give us the ability to mark our locations for our holes. Now that I have the location for our holes marked, I can go ahead and drill. Now because we are going into drywall, we need to put some inserts in first and hammer those in before we can hang the base of our smoke detector. "
eHow Article: How to Mark for Drill Holes to Install the Base of a Smoke Detector