The frigid temperatures slowed firefighters as they battled the 2-alarm fire in Canarsie Saturday.
The blaze broke out on the first floor of a home on East 96th Street.
It took about an hour to get the flames under control.
"When we got here we were met by a fire condition in the middle building," said FDNY Battalion Chief Brian Foley. "The fire was at the front door, the units went in and pushed the fire back. We found a civilian outside with burns, he was taken to Staten Island Hospital."
Two other people suffered minor injuries.
The cause of the fire is under investigation.
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