Page 4
Vista 42 ST See-thru Gas Fireplace
rev.110404
Installation
Installing The Fireplace Shell
The fireplace may be installed in any location that maintains proper clearances to air
conditioning ducts, electrical wiring and plumbing. Safety, as well as efficiency of
operation, must be considered when selecting the fireplace location. Try to select a
location that does not interfere with room traffic, has adequate ventilation, and offers
an accessible pathway for Direct Vent installation. See the
Vent Installation
section
on page 5 for more information.
The fireplace dimensions for
Vista 42 ST
models are shown below:
Top View
Front View
Side View
Figure 1.
Fireplace dimensions.
Clearances
The
Vista 42 ST
Series See-thru clearance to combustible materials are:
* Clearance from the top of the fireplace to a combustible
ceiling within the fireplace enclosure.
** Refer to page 9.
5 1/2”
5 1/2”
5 1/4”
L
Figure 2a.
Framing dimensions.
Figure 2b.
Securing the fireplace to the framing cleats.
(Minimum 1" clearance must still be maintained around the vent pipes, except on
horizontal venting sections where the top of the pipe must have a clearance of 2")
For protection against freezing temperatures, it is recommended that outer walls
of the chase be insulated with a vapour barrier. This will reduce the possibility of a
cold-air convection current on the fireplace.
Framing
Frame the fireplace cavity according to Figure 2a.
Slide the fireplace into the cavity.
Tack four studs (vertical, "broken line") in place, shown in Fig 2b.
Secure the fireplace in position by nailing into these cleats.
N
O
M
P
45”
WARNING!
When this appliance is installed directly on carpeting, tile or any combustible
material other than wood flooring, it must be installed on a metal or wood
panel extending the full width and depth of the appliance.
A
B
C
D
E
F
G
H
I
J K
L
42 401/2 391/2 11/4 293/4 1 23
7/8
401/2 7
1/8
5 8 371/2
Top (top vent)*
19"
Top (rear vent)*
19"
Front
2"
Sides
1"
Floor
0"
Mantel**
6"
Notes:
- Install supplied metal header above fireplace
after unit is in place. Use supplied hardware to
fasten to framing.
- Both sides typical. Unit may not be exactly
as shown.
- When facing with the Overlay Method the
depth is increased by 1". See Planning Guide
for more information.
M
N
O
P
491/2 45 237/8 or 237/8
461/2
