Optima Installation and Operation Manual
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5.1.2 Door adjustment
In order for your stove to burn at its best efficiency, the door must provide a perfect seal with the
firebox. Therefore, the gasket should be inspected periodically making sure to obtain an air tight fit.
Air tightness can be improved with a simple latch mechanism adjustment. To adjust:
1. Remove the lock pin (spring pin) by pulling and turning it using pliers ("wise grip").
2. Turn the handle counter clock wise one turn to increase pressure.
3. Re-install the lock pin (spring pin) with a small hammer.
5.1.3 Replacing the Door Gasket
It is important to maintain the gasket in good condition. After a year or more of use, the door gasket
will compress and become hard, which may allow air to leak past it. You can test the condition of the
door gasket by closing and latching the door on a strip of paper. Test all around the door. If the paper
slips out easily anywhere, it is time to replace the gasket.
Use the correct replacement gasket that you can purchase from your retailer. The diameter and
density of the gasket is important to getting a good seal.
Place the door face-down on something soft like a cushion of rags or piece of carpet. Remove the old
gasket from the door by pulling and prying it out with an old screw driver. Then use the screwdriver to
scrape the old gasket adhesive from the door. Now run a 1/4” (6 mm) bead of high temperature
silicone in the door gasket groove. Starting from the middle of the hinge side, press the gasket into
the groove. Do not stretch the gasket as you place it. Leave the gasket about 1/2” long when you cut
it and press the end into the groove. Tuck any loose fibres under the gasket and into the silicone.
Close the door and do not use the stove for 24 hours.
5.1.4 Replacing the Glass Gasket and/or the Glass
It is a good idea to replace the glass gasket when the door gasket is replaced. The gasket is flat,
adhesive-backed, woven fibreglass. Remove the glass retaining screws and clips. Lift out the glass
and pull off the old gasket. This is a good time to clean the glass thoroughly.
