From left, Lunenburg Fire Chief Pat Sullivan and Unitil’s John DiNapoli encourage homeowners and renters to check their smoke and carbon monoxide detectors during the heating season. Lunenburg ...

Also, don’t forget to check your carbon monoxide detectors as well. If you have questions about your detector, you can call your local fire department on the non-emergency line.

While Airbnb recommends that hosts install carbon monoxide and smoke detectors—and provides them for free to eligible renters—neither is actually required by the rental platform, per its website.