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Overfiring can cause discoloration to any glass door unit and may damage the heat exchanger. Step 1. Verify that the Grate Heater is the proper size for the fireplace. Step 2. For fireplaces with existing glass doors, make sure they can be elevated 1-3/8 inch.
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EXTENDER Figure 1. Grate Heater OPERATING INSTRUCTIONS 1. On initial start-up of the Grate Heater, there will be 5. Under normal use the blower on the Grate Heater should be oiled every 4,000 hours of operation. There some smoke produced. This is a burn-off of oil used in manufacturing of this unit.
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