Monessen Hearth CSDV40SLP - Manual (Page 12)

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CSDV Series Direct Vent Gas Stove VENTING INSTALLATION
INSTALLATION pLANNING
There are two basic types of direct-vent installation:
• Horizontal Termination
• Vertical Termination
It is important to select the proper length of vent pipe for the
type of termination you choose. It is also important to note
the wall thickness.
FOR HORIZONTAL TERmINATION
Select the amount of vertical rise desired. The horizontal run
of venting must have
1 /
4
" rise for every 12" of run towards the
termination.
You may use up to three 90° elbows in this vent configuration. Refer to Horizontal Termination
Configurations on Page 16.
FOR VERTICAL TERmINATION
Measure the distance from the stove flue outlet to the ceiling. Add the ceiling thickness, the verti-
cal rise in an attic or second story, and allow for sufficient vent height above the roof line. You may
use one or two 90° elbows in this vent configuration. Refer to Vertical Termination Configurations
on Page 18.
NOTE: You may use two 45° elbows in place of a 90° elbow. You must follow rise to run ratios when
using 45° elbows. The appliance is approved for use with three 90° elbows maximum or a combina-
tion of 90° and 45° elbows up to a maximum of 270°.
For two-story applications, firestops are required at each floor level. If an offset is needed in the
attic, additional pipe and elbows will be required.
You may use a chase with a vent termination with exposed pipe on the exterior of the house. Refer
to Installing Vent System in a Chase below.
It is very important that the venting system maintain its balance between the combustion air intake and
the flue gas exhaust. Certain limitations apply to vent configurations and must be strictly followed.
INSTALLING A VENT SySTEm IN AN OUTSIDE CHASE
A chase is a vertical boxlike structure built to enclose venting that runs along the outside of a build-
ing. A chase is required for such venting.
NOTE: When installing in a chase, you should insulate the chase as you would the outside walls
of your home. This is especially important in cold climates. Minimum clearance between vent pipes
and combustible materials such as insulation is 1".
W
ARNING
Never run the vent pipe level or downward.
This may cause excessive temperatures
which could cause a fire.
NOTICE
Treatment of firestops and construction of the chase may vary from building
type to building type. These instructions are not substitutes for the requirements
of local building codes. you must follow all local building codes.
W
ARNING
Always maintain minimum clearances around vent systems. The minimum
clearances to combustibles for horizontal vent pipe are 2" at the top and 1"
at the sides and bottom of the vent system. For wall firestops, a 1" minimum
clearance all around the pipe must be maintained. Do not pack the open air
spaces with insulation or other materials. This could cause high temperatures
and may present a fire hazard.