Installed a Lopi Cape Cod Flush Wood Plus insert last year. The third airtube from front is defective -- too short -- barely rests in the slot left side, falls out, large gap where it should go in; wondering if anyone else encountered similar problem. Also, the blower fan seems not that effective at pushing heat out into room, though it is VERY loud. Does anyone have any suggestions as to options replacing with quieter more efficient fan? Overall generally happy with the insert but not with the defects. Thanks folks.