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116240-01A
VENTING INSTALLATION
INSTRUCTIONS
Continued
HIGH ALTITUDE INSTALLATION
Your DESA direct-vent fireplace has been tested and approved for
elevations from 0-2000 feet (USA) and elevations from 0-4500
feet (Canada) .
When installing this fireplace at an elevation above 2000 feet (in the
USA), you may need to decrease the input rating by changing the
existing burner orifice to a smaller size. Reduce input 4% for each
1000 feet above sea level. Check with your local gas company for
proper orifice size identification.
When installing this fireplace at an elevation above 4500 feet (in
Canada), check with local authorities.
Consult your local gas company to help determine the proper orifice
for your location.
For assistance with any high altitude installation contact DESAʼs
Customer Service Department at 1-866-672-6040.
VENTING INSTALLATION INSTRUCTIONS
Installation for Vertical Termination (Cont.)
High Altitude Installation
Vertical Venting
V = 40' max.
Figure 24 - Vertical Venting Configuration With No Horizontal
Run (Vertical Round High Wind Termination Shown)
Note: Install restrictor
into inner collar of
fireplace as shown.
45° Elbow