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111987-01D16
VENTING INSTALLATION
INSTRUCTIONS
Continued
Note: Install
restrictor into
inner collar of
replace as
shown.
Vertical (V
1
5' min. 6' max.
6' min. 12' max.
7' min. 18' max.
8' min. 20' max.
Note: Vertical (V
1
) + Vertical (V
2
) = 40' max.
Figure 23 - Vertical Venting
Conguration Using Two 90° Elbows
(Vertical Round High Wind Termination
Shown)
45° Elbow
V = 40' max.
Figure 24 - Vertical Venting
Conguration With No Horizontal Run
(Vertical Round High Wind Termination
Shown)
Note: Install
restrictor into
inner collar of
replace as
shown.
45° Elbow
HIGH ALTITUDE INSTALLATION
Your DESA direct-vent replace has been tested and
approved for elevations from 0-2,000 feet (USA)
and elevations from 0-4,500 feet (Canada).
When installing this fireplace at an elevation
above 2,000 feet (in the USA), you may need to
decrease the input rating by changing the existing
burner orice to a smaller size. Reduce input 4%
for each 1,000 feet above sea level. Check with
your local gas company for proper orice size
identication.
When installing this fireplace at an elevation
above 4,500 feet (in Canada), check with local
authorities.
IMPORTANT: For horizontal installations
above 2,000 feet, it is recommended that a 12"
extension pipe be added before starter elbow
(see Figure 25, page 17 ).