Door - Osburn 3500-I Installation And Operation Manual

6. Cut the gasket to the required length.
7. Pinch the gasket onto the glass in a U shape, all around the glass.
6.3

Door

In order for the insert to burn at its best efficiency, the door must provide a perfect seal with the
firebox. Therefore, the gasket should be inspected periodically to check for a good seal. The
tightness of the door seal can be verified by closing and latching the door on a strip of paper.
The test must be performed all around the door. If the paper slips out easily anywhere, either
adjust the door or replace the gasket.
6.3.1 Adjustment
The gasket seal may be improved with a simple latch mechanism adjustment:
1. Remove the split pin by pulling and turning it using pliers.
2. Turn the handle one counterclockwise turn to increase pressure.
3. Reinstall the split pin with a small hammer.
Removing the split pin
Installation and Operation Manual - Osburn 3500-I
Door gasket seal verification
Installing the split pin
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