Donald C. Fey Jr. died of carbon monoxide toxicity and smoke inhalation, and the manner of death was accidental, said Northampton County Coroner Zachary Lysek in a release.
Fey was found dead at his home on the 1500 block of Raubsville Road around 8:20 a.m. Monday, Daily Voice reported.
The Criminal Investigations Unit of the state police Belfast Station is leading the probe into the fire's cause, troopers have said.
According to his obituary from Johnson-Walton Funeral Home, Fey was a Phillipsburg, NJ native who was employed as a highway construction worker.
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