The property on Rockview Street was discovered alight by the resident who was returning home at around 4.15 pm yesterday, Tuesday 10 October.
The male occupier attempted to enter the property to locate two pet dogs but was beaten back by thick smoke.
He sustained some minor burn injuries and was suffering from smoke inhalation.
He is being treated in hospital.
The property has been extensively damaged by the blaze.
The dogs were not inside the property at the time.
Both dogs have been located safe and well and have been returned to their owner.
Detective Constable Philip Cummings said: “We are appealing for witnesses or anyone with information about this crime to get in touch with us.
“Detectives can be contacted on 101, quoting reference number 933 10/10/17.”