Hi, my name is Nick. I got into komodo cooking a year ago I'm hooked. I just bought a used original tabletop version. The cooking grate is 12 inches wide and it stands about 25 inches tall. My problem is the top vent frozen closed. I tried heating with a torch and a 550-degree fire no luck. Any suggestions before I pull top dome off the hinge and do damage that can't be undone? Thanks, NIck