A smoke alarm that beeps periodically, often every 30 to 60 seconds, usually indicates a low battery. The first step is to replace the battery. If this doesn't solve the problem, try resetting the alarm. However, beeping can also signal other issues, such as dust buildup in the sensors or the unit reaching the end of its life. Different beep patterns can mean different things; for example, multiple beeps might indicate an issue with a combination carbon monoxide detector, while a continuous, loud alarm means smoke has been detected. If a new battery doesn't stop the beeping, it's best to consult your alarm's manual, call a professional, or replace the unit.

Yes. Not only do gas stoves present the risk of a gas leak, but cooking with gas produces twice as much harmful particulate matter. According to Columbia University’s Climate School, gas stoves can also release formaldehyde, a known human carcinogen, and carbon monoxide, which can be toxic in high concentrations.

You can’t gauge the lifetime of a fire door like you could, say, an engine. Fire doors should be checked at least once every six months to ensure there are no signs of degradation like leaks, holes, water damage, termite damage, or anything else that might compromise the functionality of the door’s fire resistance. Check your smoke detectors while you’re at it.

Fire doors are constructed to have certain resistance levels regarding fire. A traditional door can typically resist fire for less than one minute, whereas fire doors can resist it for 30 to 120 minutes, depending on the fire door rating. Fire doors give you and your family a better chance of safely escaping during a fire than standard doors.