oil furnace service 16

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We just had our oil furnace serviced for the season because the cold weather was really testing the old system. The technician started by cleaning the burner and nozzle, then checked the flue for any blockages. He replaced the oil filter and adjusted the air-to-fuel ratio until the flame was steady and blue. Took about an hour, and now the heat kicks on faster without that weird smell we noticed last winter.