Around 12:20am, Monday, emergency personnel were called to 1820 Wiconisco Street, Reinerton, Porter Township near Tower City for a working structure fire.
When crews arrived they found heavy fire in the rear of the home and remained on scene for hours after the call.
A woman who lived in the home escaped without injury. The woman in the home credited working smoke detectors for waking her up when the fire started.
Late Monday, after an investigation by a State Police Fire Marshal, fire officials say the fire has been ruled accidental after a malfunction space heater caught fire.
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