Enviro C-10914 - Manual (Page 30)

Initial Installation
GENERAL VENTING INFORMATION:
Canadian Installations
The venting system must be installed in accordance with the current CSA B149 installation code and/or
local codes having jurisdiction.
U.S.A. Installations
The venting system must be installed in accordance with the current National Fuel Gas Code, ANSI
Z223.1, and/or local codes having jurisdiction.
The minimum clearance to combustibles is 6” (150 mm) when using single wall venting and 1” (25 mm)
when using “B-vent” venting.
We strongly recommend installing an approved chimney liner in an existing brick chimney. This will
maximize the potential draft of the chimney and lessen the effects of slow chimney start-up.
VENTING OF A FIREPLACE FITTED WITH THE DRAFTHOOD ADAPTOR:
Note: Please refer to the chimney manufacturer’s installation instructions prior to commencing the
installation.
This unit may be vented to an existing masonry chimney, or where no masonry chimney is available, an
approved “B-vent” chimney, or any other approved constructed chimney/vent system (see Figure 40 & 41).
Figure 40: Unit top venting styles.
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Figure 42: Draft test place.
Figure 41: Unit rear
venting style.
In either case, the fireplace may be connected to
the chimney/vent using a 4” (10 cm) single wall vent
connector.
If 4” (10 cm) “B-vent” is used a minimum of 1” (25 mm) must be
maintained between the vent connector and any combustibles.
CAUTION: A minimum vent height of 12’ (3.6 m) from the floor is
required to effectively vent this fireplace.
SPILLAGE TEST:
A spillage test must be performed prior to leaving the installed fireplace
with the customer. Perform this test in the following manner:
1. Close all windows and doors in the room.
2. Start all exhaust fans in the house and the furnace blower.
3. Light the fireplace and set to maximum flame adjustment.
When an existing masonry chimney
is utilized for the venting, we
recommend the vent connector be
connected to an approved 4” (10
cm) diameter flue liner running the
full height of the chimney. In many
jurisdictions this flue liner may be
mandatory.
If 4” (10 cm) single wall vent is
used, a minimum of 6” (15 cm) must
be maintained between the vent
connector and any combustibles.
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