NIFRS responded to a fire at an end-terraced house at Long Commons in Coleraine on Sunday afternoon.
The cooking pan fire was out on arrival of NIFRS.
Firefighters wearing breathing apparatus rescued a man in his 30s from the house.
The casualty received First Aid and oxygen therapy for smoke inhalation from NIFRS at the scene. Fire crews from Coleraine and Portstewart stations attended the incident.