Manhunt underway after a Sydney house was firebombed putting the occupant in hospital with severe injuries

A firebomb attack on a suburban Sydney home has left the homeowner in critical condition in hospital as two suspects are on the run.

Police are looking for two men who they believe poured gasoline on the front of the house on Chelsea Drive in Canley Heights, in the west of the city, at 05:45 on Saturday.

The only resident of the house, a 68-year-old man, was saved by a neighbor who pulled him out of the fire when firefighters arrived.

He was taken to Royal North Shore Hospital in a critical condition with smoke inhalation and significant burns, but is now in a serious but stable condition.

Investigators have not released any leads about a motive for the attack.

Police are looking for two men who they believe poured petrol on a house in Chelsea Drive in Canley Heights, in Sydney's west, at 5.45am on Saturday.

Police are looking for two men who they believe poured petrol on a house in Chelsea Drive in Canley Heights, in Sydney’s west, at 5.45am on Saturday.

The only occupant of the house, a 68-year-old man, was saved by a neighbor who pulled him out of the burning building when firefighters arrived.

The only occupant of the house, a 68-year-old man, was saved by a neighbor who pulled him out of the burning building when firefighters arrived.

NSW Fire and Rescue Inspector Chris Hughes said his crews “found the fire to be fast-paced” and NSW Police Acting Inspector David McInerney said it was suspicious.

“There is a possibility that there are multiple people involved or more than one,” Acting Inspector McInerney told reporters.

A man in his 60s suffered significant burns to his arms and limbs. It is extremely dangerous and it is an extremely volatile situation.

“At this stage we are appealing to the public if they have any dashcam footage or they have any CCTV footage to contact the police.”

Meanwhile, dogs combed the area and the police confirmed that two men had doused the front of the house with jerry cans filled with petrol.

Fire and Rescue NSW Inspector Chris Hughes said his crew found the fire was fast-moving and believed to have started in multiple locations.

Fire and Rescue NSW Inspector Chris Hughes said his crew found the fire was fast-moving and believed to have started in multiple locations.

The wreckage of the house showed that the entire front facade was destroyed after firefighters extinguished the blaze

The wreckage of the house showed that the entire front facade was destroyed after firefighters extinguished the blaze

The wreckage of the house showed that the entire front facade was destroyed after firefighters extinguished the blaze.

Inspector Hughes believed the fire was started at ‘multiple sites’ by the two men.

The elderly female neighbor who pulled the man out of the fire told 9News that she opened his door to find the whole house on fire.

His workmate arrived shortly afterwards to collect the man for work and was shocked to find out what had happened.

The two suspects remain on the run.

Anyone with dashcam footage or information is asked to contact police.