One man is behind bars and another is fighting for life in hospital after allegedly being doused in petrol and burned in NSW.

Emergency services were called to a home at Wellington, near Dubbo in the state’s central west, about 5pm on Thursday following reports of a blaze.

Initial investigations suggest the fire was deliberately lit.

A 52-year-old man suffered serious burns to more than 60% of his body and was flown to Concord hospital, where he remains in a critical condition.

Police allege he was doused in petrol during the incident.

A 46-year-old man was later found at a nearby property and taken to Dubbo Base hospital for treatment of burns.

He was arrested and charged with the domestic violence-related offence of causing wounding/grievous bodily harm with intent to murder.

The man was refused bail to appear at Dubbo local court on Friday.