Smoke detectors and other equipment
You should install and maintain the smoke detectors at your holiday home the same way you'd do at home. That means making sure you have enough smoke detectors for the size of your house, and they’re placed correctly. You should have at least one smoke alarm each floor, and each alarm covers at maximum 60m2 on a single floor. Smoke alarms should be placed on the ceiling, somewhere where the alarm is able to reach you as early as possible. For more information, read our blog post on the subject.
You might also want to look into smart smoke alarms. They're able to send notifications to your phone when smoke or carbon monoxide is detected. This would be extra useful when your house is remote or not actively used.
As for other equipment, it would always be good to have a fire blanket and a fire extinguisher on hand, especially in the kitchen or near other cooking areas.