This is a great insert that my dad installed in 1988. He's now passed and I've not his expertise. This unit is equipped with an automatic blower with "quiet" fans that come on when the fire reaches a certain temperature. The fans should be oiled (according to instructions) several times during the fire burning season. The fans are on behind glass door panels on either side of the large stove door. I can unscrew the screws to open the door and oil the fan on the open door side of the large door opening, but on the hinged side of the opening the screws are blocked by the door edge. I do not know how to either lift the large door off it's hinge or somehow otherwise open the side door. I don't think the left side fan has ever been oiled and is now making quite a lot of noise if I use it. (btw: instructions say to oil the fans, but no how to do that or even where they are) Thanks. OK. Hours later I figured it out. You must take the large door off. That can be done by pulling the D-not-quite-a-ring thingy from the top of the door post and wa-la, lift the door up and take off. THEN the side screws are accessible. Oiled the fan, built a fire and am now just waiting for it go get hot enough to turn on the auto fans. BTW. there was another question on FABCO about the knob that swivels above the large door. It controls the damper, up and to the right to light the fire, straight down once it's burning well. It really reduces the airflow.