, N.M. —

Summer is over, and the cold temperatures have already begun to creep into New Mexico. That means it's time to turn on the heaters.

Experts recommend beginning with a check of your cooling and heating systems to ensure a safe, efficient start to the winter season. If your home uses a swamp cooler, drain it completely to prevent freeze damage.

One of the simplest steps is replacing your furnace filter — something that should ideally be done every other month rather than just once a year. Regular maintenance helps systems run efficiently and improves indoor air quality.

Safety is also a key concern.

Carbon monoxide, known as the "silent killer," can build up unnoticed, particularly at higher altitudes.

"It's really important that you have somebody come out and check. There are

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