"It was a remote property, and the neighbouring properties alerted 111 to the fire.
"The occupant managed to self-evacuate and then passed out due to smoke inhalation."
Early intervention by the fire brigade prevented the fire spreading to neighbouring properties, he said.
Cooper said it should serve as a reminder for people to install smoke alarms, and in case of fire "get out and evacuate".
One ambulance and a rescue helicopter were also sent to the scene.
A St John Ambulance spokeswoman said the man was transferred "in serious condition" by air to Hawke's Bay Hospital.
He was discharged later on Thursday.