Where Should I Place a Smoke Detector?
According to the NFPA:
Install smoke alarms inside each bedroom and outside each sleeping area and on every level of the home, including the basement. On levels without bedrooms, install alarms in the living room (or den or family room) or near the stairway to the upper level, or in both locations. The NFPA also recommends interconnection of alarms to provide better whole-home protection.
Where Should I Place a Carbon Monoxide Detector?
According to the EPA:
Because carbon monoxide is slightly lighter than air and also because it may be found with warm, rising air, detectors should be placed on a wall about 5 feet above the floor. The detector may be placed on the ceiling. Do not place the detector right next to or over a fireplace or flame-producing appliance. Keep the detector out of the way of pets and children. Each floor needs a separate detector. If you are getting a single carbon monoxide detector, place it near the sleeping area and make certain the alarm is loud enough to wake you up.
According to a manufacturer (Kidde):
At a minimum, industry experts recommend a CO alarm be installed on each level of the home — ideally on any level with fuel burning appliances and outside of sleeping areas (halls). Additional CO alarms are recommended 5-20 feet from sources of CO such as a furnace, water heater or fireplace. Choose locations free of obstructions, where the alarm will stay clean and protected from adverse environmental conditions. Do not place the unit in dead air spaces (like closets) or next to a window or door.
Where Should I Place Fire Extinguishers?
According to the NFPA:
Residential: Fire extinguishers are not required in one and two family dwellings.
For multi-family and commercial: See this resource by the NFPA
According to a Manufacturer (Kidde):
Step 1: Choose Primary Fire Extinguishers (Must Have)
For your main home protection install a 2-A:10-B-C rated extinguisher on every level of your home- no more than 40 feet apart. This could include locations such as living areas, garages, and workshops.
Step 2: Choose Supplementary Fire Extinguishers (Should Have)
The kitchen is the likeliest place you will have a fire. Protect special locations in your home with a UL rated fire extinguisher.