Wiring a light switch wrong can cause a fire if the incorrect wiring causes arcing, meaning the current jumps uncontrolled from one conductor to another. Loose wires or worn wires that are not repaired or replaced can cause arcing. If you’re not 100% sure you can do the job safely, don’t attempt to wire a light switch on your own.

A spark arrestor is not the same as a chimney cap. Both sit on the top of the chimney. However, the cap keeps debris from entering the chimney, and the spark arrestor’s primary function is to prevent burning embers from escaping. Some spark arrestors are integrated into the chimney cap, and others are installed separately.

Yes, you can close off a fireplace both temporarily and permanently with extremely wide price ranges. Temporary solutions involve fireplace plugs that can be inflated to block air and deflated to open the fireplace, covers, and boards. Permanent methods of shutting off fireplaces usually involve bricking up the fireplace or covering it with drywall. No matter the method, it’s probably best to hire a professional.

Regular HVAC filter changes, deep cleaning, and air quality monitoring help maintain a healthy environment.