The first fire started around 1:45 a.m. on Idaho Street and Ward Street. Crews arrived to find the home engulfed in flames.
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As they were working to extinguish the fire, another call came in 4-and-a-half blocks away at Idaho Street and Dumble Street.
At the second location, a firefighter's helmet caught fire. Video shows his colleague patting it out.
RAW VIDEO: Firefighters battle flames at house fires back-to-back
Firefighters battle suspicious fires
Authorities say battling the two blazes was taxing on the crews, sending one firefighter to the hospital to be treated for heat exhaustion.
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The causes of both fires are under investigation.
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