I was Don first service call this morning due to no heat, Don serviced the burner, checked to see how much oil was in the tank. (Just got a delivery yesterday). He took the time to explain what he was doing and made sure the burner was working. I would like him to kept servicing my burner. He was VERY professional!!! I just annoyed that I have been calling to get my burner serviced since September ( was told I was on a waiting list). Finally I was scheduled for next Monday. It took waking up to no heat with the temp. outside in the teens to get my burner serviced. I was not happy with this.