Mastic 91P ユーザーズマニュアル

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CLEANING AND MAINTENANCE 

VENT SYSTEM

The fireplace and venting system should be inspected before initial use and at least annually by a qualified field service person. 
Inspect the external vent cap on a regular basis to make sure that no debris is interfering with the airflow. Inspect entire venting 
system to ensure proper function.

GLASS 

PANELS

Thoroughly clean the inside of the glass 

panels

 after using the fireplace for ten hours. Periodically clean the glass 

panel

 as neces-

sary. 
When cleaning the glass, remember:
•     Do not remove the glass when hot. Allow glass to cool before removal.
•     NEVER use abrasive materials.
•     Keep children and pets a safe distance away.
•     Never operate the fireplace without the glass door properly secured.
•     Never operate the fireplace if the glass is broken.
•     Replace any glass that is chipped, cracked, or broken. Replacement glass door assemblies MUST be supplied by the fireplace 

manufacturer – No substitute materials may be used.

•     Handle glass door with care to avoid striking or scratching it on hard objects.
To clean glass door, follow “Glass Removal” procedure outlined in the Final Installation section. Film deposit on the inside of 
the glass should be cleaned off using a nontoxic, non-corrosive, non-abrasive, mild-cleaning solution. Simply apply an adequate 
amount to the glass and wipe off with a damp cloth. After all maintenance has been completed, re-install glass door.

STONES

Leave 

stones 

 installed in the fireplace for cleaning. Vacuum surface of the 

st    ones

 with a brush attachment. If 

stones

 must be  

removed 

for cleaning, handle carefully by holding gently. 

MEDIA

Replace or add media as required following unstallation instructions in the Final Installation  section of this manual

. 

BLOWER/FAN ASSEMBLY

The fan assembly has an automatic temperature control which will turn the fan on as the fireplace heats up. The fan will turn off as

 

the fireplace cools down. The control knob can be used to turn the fan off or control the fan speed. The heat up time and cool down

time is controlled by the temperature disc magnetically mounted under the fireplace bottom.  This disc can be moved  to adjust the

blower start up and shut off timing.