One doesn't cover both!

Good information.  I always placed the smoke and carbons next to each other.  I never liked using combos because the inspectors (once a year requirement) never realize that they are combos.

Good evening 

Thank you for sharing your information with us William Feela 

Have a great night.

1/15/2019. 

Good information! I’ve never considered that the placement of the units may affect the readings.

This is always the question and when I have actually read the installation instructions, they don't even tell you where to place the units!

William great post you are spot on and in some places where the place is very small.   For example 1100 sq ft or less even if it is not near the fireplace or the kitchen it helps.  Provided they are like you said, in the right height level that is appropriate for the type of protection you need. Endre

Good morning, William Feela you're right....every home needs both... and in the locations as you've described....

Good morning William. You make a really good point and I tend to agree.

Good morning William. Sometimes best to divide and conquer! Enjoy your day!

Yep, smoke detectors and CO2 detectors are very different animals!  That's good advice about placement of them.

Very good point and I can see where it could save many lives when put in the right location

Good advice William. I don't think most people consider that when purchasing a dual detector. Buying one of each & putting them in the correct location is the way to go.

Great advice for detector. Happy Birthday & Many More William Feela.

Very good advice about something most people would not know or thnk even about.