#smoke alarm

2 articles.

A white duvet hangs down against the left side of a radiant space heater in a dark bedroom. Two quartz tubes glow orange behind the wire grille, grey smoke rises above the heater, and its cord runs to a wall outlet.

Fire in Daily Life

Space Heater Season: Why 3 Feet and Off at Night Save Lives

A space heater starts a small share of US home heating fires but causes most of the deaths. Radiant heat, tip-over physics and sleep explain why.

September 29, 2026 · 19 min read

Two round white smoke alarms mounted side by side on a hallway ceiling at night, with grey smoke drifting toward them from a doorway lit by a faint orange glow and a moonlit window at the right

Fire Safety Engineering

Ionization or Photoelectric Smoke Alarm? Why Experts Split

Ionization alarms beat a photoelectric smoke alarm by seconds in flaming fires, then lose by 30 minutes in smoldering ones. Here is why experts still split.

September 25, 2026 · 19 min read