San Antonio firefighters are concerned that a predicted cold snap could lead to more fires such as one inside a vacant West Side home Friday morning. Homeless people are believed to have started it.

Thanks to smoke detectors and better building codes, the numbers of house fires are down significantly. But, fires that do happen are deadlier.

Just in time for chilly mornings, Consumer Reports tests space heaters for fire safety and warmth.

As summer temperatures heat up, so do the numbers and risk of fires linked to window air conditioner units. Diligent maintenance and proper electrical setups are key, experts say.