Drolet ECO-65 Owner's Manual page 36

Step 2:
Remove the upper air jacket access panel by untying the 8 spring clips.
Step 3:
Remove all 6 bolts retaining the right cleanout panel. Remove the worn gasket and clean-up the contact
surfaces. Clean-up the dirty area inside the appliance with an ash vacuum. Apply gasket #21349 from AC09190
on the cleanout panel. Put back in place the cleanout panel with its respective bolts.