Place CO detectors near every sleeping area, on every level, and near fuel-burning appliances like furnaces and water heaters. Do not place them in kitchens, garages, or humid areas. Test monthly and replace every 5-7 years.
Placement Locations
Near bedrooms, on each level, near fuel-burning appliances, near attached garages.
Number Needed
At minimum: one on each level and one outside sleeping areas.
Testing
Test monthly using the test button. Replace batteries annually.
Replacement
Replace CO detectors every 5-7 years depending on manufacturer specifications.