Four fire engines and 21 firefighters and officers were called to a fire at a house in Combedale road in Greenwich on Tuesday evening.
A small part of the ground floor was damaged by fire. The occupier was woken by a smell of burning in a bedroom on the lower ground floor. The man left the property before the arrival of the Brigade and was treated at the scene by London Ambulance service for smoke inhalation.
The Brigade was called at 2137 and the fire was under control at 2230. Fire crews from East Greenwich, Greenwich and Deptford fire stations attended the scene.
The cause of the fire is believed to be an oil-filled radiator.