Avalon Firestyles 900 PI-1993 to 1996 User Manual
Page 19
I
NSERT
I
NSTALLATION
(C
ONT
.)
P
AGE
19
I
NSERT
S
IZE
R
EQUIREMENTS
For ZC and Masonry Fireplaces
20" Minimum
20" Minimum
29 3/4" Minimum*
21" Minimum
12 1/4" Minimum
12 7/8" Minimum
* The minimum fireplace
size is larger in front
than in back because
the switch box slides
into the left side panel
and goes into the
fireplace cavity.
For Built-In Installations
See the section "Built-In Installation" for details on size requirements for this type of installation.
H
EARTH
R
EQUIREMENTS (See the illustration above)
¥
Built-in Installations require a floor shield, which meets the hearth requirement
¥
Must extend below the insert on all sides (Min. 21 1/4" wide)
¥
Must be non-combustible and at least .018" thick (26 guage)
P
ELLET
V
ENT
R
EQUIREMENTS
NOTE:
Built-In installations have special pellet vent requirements that exceed the
requirements listed below (see the section "Built-In Installation").
¥
Stainless steel single wall, type "L", or stainless steel flexible vent must be used
for masonry fireplaces or zero-clearance (metal) installations, built-in installations
require type "L" pellet vent
¥
Must not connect to a vent serving any other appliance or stove
¥
All pellet vent connections must be screwed together with sheet metal screws and
sealed airtight with 500
o
F. RTV silicone
¥
Must have an approved cap (to prevent water from entering)
¥
No more than 180
o
of elbows (two 90
o
elbows, or two 45
o
& one 90
o
elbow, etc.)
¥
Maximum 33' length if vertical only
¥
Maximum 10' horizontal length if vertical rise is 25' or less
¥
Maximum 4' horizontal length if vertical rise is 30' to 25'
Pellet Vent Diameter
¥
If the pellet vent is over 15' in total vertical length use 4" diameter
¥
If the pellet vent is over 4' in total horizontal length use 4" diameter
¥
If the heater is installed at an altitude over 4000' use 4" diameter
¥
Otherwise, use 3" or 4" diameter