In terms of installation, where is the recommended placement for smoke detectors?

Smoke detectors are crucial for early detection of fires, and their placement significantly impacts their effectiveness. It is recommended to install smoke detectors on every level of a home because this ensures comprehensive coverage throughout the entire living space. Smoke can spread quickly, and having detectors on every level increases the chances of detecting smoke early, regardless of where a fire may start.

In addition to being placed on every level, detectors should be positioned outside of sleeping areas to alert occupants during the night. It's also beneficial to have them in any additional rooms that may contain heat sources, ensuring maximum safety for all occupants.

While the other choices mention certain locations or conditions for installation, they don’t provide the level of comprehensive safety that covering every level does. Therefore, having smoke detectors installed at every level is a fundamental step in fire safety planning.