Around 8:00 Saturday morning, Lincoln Fire and Rescue responded to the call of a basement fire at 306 N 32nd street.
Upon arrival, firefighters were forced to smash through windows and saw sides of the house open to stop the flames.
One firefighter was treated and released from the hospital for heat exhaustion.
The stepson of the homeowner, who called 911, says no one was in the home at the time. His step-dad was at Madonna Rehabilitation Hospital preparing his mom to come home for the first time in months.
The stepson had just finished putting in a wheelchair ramp an hour earlier and says he didn't see smoke. When he returned, the smoke was so dense the house was nearly invisible.
It's believed combustible materials near the basement furnace