Smoke Detectors - Ionization Vs. Photoelectric - General DIY Discussions - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > DIY Repair > General DIY Discussions

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 07-26-2012, 01:32 AM   #1
JOATMON
 
ddawg16's Avatar
 
Join Date: Aug 2011
Location: S. California
Posts: 7,668
Rewards Points: 2,642
Default

Smoke Detectors - Ionization vs. photoelectric


I'm getting ready to buy smokes and CO detectors for my 2-story addition project....so I've been doing the research....came across this bit of info from NFPA.

Ionizaton vs Photoelectric Detectors

blurb from it...
Quote:
Ionization smoke detection is generally more responsive to flaming fires.
How they work: Ionization-type smoke alarms have a small amount of radioactive material between two electrically charged plates, which ionizes the air and causes current to flow between the plates. When smoke enters the chamber, it disrupts the flow of ions, thus reducing the flow of current and activating the alarm.

Photoelectric smoke detection is generally more responsive to fires that begin with a long period of smoldering (called “smoldering fires”).
How they work: Photoelectric-type alarms aim a light source into a sensing chamber at an angle away from the sensor. Smoke enters the chamber, reflecting light onto the light sensor; triggering the alarm.
So....what I'll be doing....putting in combination CO & Ionization detectors in near the combustin source....and photoelectric detectors in the bedrooms...

Just wanted to share.

Advertisement

__________________
Even if you are on the right track, you will still get run over if you just sit there.

My 2-Story Addition Build in Progress Link ... My Garage Build Link and My Jeep Build Link
ddawg16 is offline   Reply With Quote
Old 07-26-2012, 11:45 AM   #2
Member
 
Join Date: Jan 2009
Location: WV
Posts: 3,025
Rewards Points: 2,230
Default

Smoke Detectors - Ionization vs. photoelectric


Not a bad idea. Don't recall where it was, but I once lived in a place where both types were required by code.

Advertisement

md2lgyk is offline   Reply With Quote
Old 07-26-2012, 01:27 PM   #3
Member
 
Join Date: Feb 2012
Location: Northern Virginia
Posts: 157
Rewards Points: 150
Default

Smoke Detectors - Ionization vs. photoelectric


To me, linking them together is more important than their type. I have several of the talking Onelink's from First Alert. A voice tells you where in the house the smoke or CO was detected.

Except for the time I was using a nail gun in my garage at midnight and kicked up some dust near the smoke alarm. Every alarm inside the house sounded... the ol' family was not pleased.
silversport is offline   Reply With Quote
Old 07-26-2012, 01:47 PM   #4
JOATMON
 
ddawg16's Avatar
 
Join Date: Aug 2011
Location: S. California
Posts: 7,668
Rewards Points: 2,642
Default

Smoke Detectors - Ionization vs. photoelectric


Quote:
Originally Posted by silversport View Post
To me, linking them together is more important than their type. I have several of the talking Onelink's from First Alert. A voice tells you where in the house the smoke or CO was detected.

Except for the time I was using a nail gun in my garage at midnight and kicked up some dust near the smoke alarm. Every alarm inside the house sounded... the ol' family was not pleased.
What? Family has no sense of humor?

I totally agree with the interlinking....but it looks like I'll go with the Kidde....I like the voice feature along with the hardwired interconnect....I figure it will be more reliable in the long run vs wireless.....I have enough RF stuff going on in my house already.

Kidde also has the relay module I can add that would allow me to interface it to a central alarm system.

As I do my wiring, I'm also putting stuff in place that will allow me to alarm/monitor/automate at a later date.

For now....one task at a time...a couple of years from now when I start running out of projects, I'll do the automation thing.....
__________________
Even if you are on the right track, you will still get run over if you just sit there.

My 2-Story Addition Build in Progress Link ... My Garage Build Link and My Jeep Build Link
ddawg16 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Test your smoke DETECTORS! Leah Frances Safety 15 11-08-2012 08:05 AM
adding new wired smoke detectors to existing wired smoke detectors CapeCod153 Electrical 9 06-21-2012 06:03 AM
Questions on installing Smoke Detectors danielrg Electrical 10 08-30-2011 01:08 PM
Smoke Detectors on Different Circuits Mililani Electrical 13 10-17-2010 07:35 PM
Wiring Smoke Detectors - Has to be straight run? WaldenL Electrical 15 08-30-2009 10:22 AM




Top of Page | View New Posts