A wheelie bin was pushed up against a Rotherham house and set alight.
Heat from the blaze on Ferham Road, Holmes broke a kitchen window.
Rotherham and Elm Lane stations attended the incident at around 8.40pm on Wednesday.
Firefighters used a hose reel to tackle the blaze and specialist equipment to ventilate the property.
The maximum sentence for arson is life in prison.
Anyone with information about people starting fires should call Crimestoppers, anonymously, on 0800 555 111.