Greenville Firefighters responded Tuesday, at 6:07 p.m., to a report of a residential structure fire on Franklin Street. According to the fire report, when firefighters arrived, they found light smoke coming from the rear of the residence. Crews found a smoldering fire in the crawl space. They quickly extinguished the fire which was reportedly caused by a propane heater used to thaw out water pipes under the house. Damage is estimated at approximately $3,000.00. No injuries were reported and firefighters were on the scene about half an hour.