Vermont Castings UVL18RP Installation And Operation Instructions Manual page 9

7A
Front View
3¹⁄₂" Min.
3¹⁄₂"
Noncombustible
Min.
Facing Material
Top View
Finished Wall
Material
Firebox
11"
Fig. 7 Mantel clearances.
Burner Assembly Location
Centrally locate the unit in the fireplace, far enough
back into the firebox to accomplish adequate draft (if
use as a vented appliance is planned). Ensure that
the front grate feet sit inside the front edge of the
fireplace a minimum of 3". (Fig. 7B)
Clearances
(Refer to Fig. 7, Page 9)
To ensure the safe installation into a masonry or
factory-built fireplace, carefully observe the following
instructions:
1. Sidewall Clearances: The clearance from the
inside of the front opening of the fireplace to any
combustible wall should not be less than 3¹⁄₂" (Fig.
7A)
2. Ceiling Clearances: The ceiling height should not
be less than 42" from the top of the fireplace opening.
(Fig. 7A)
UVL Series
7B
42"
Noncom-
bustible
Material
Stand-off
762
Mantel Trim
3¹⁄₂"
Noncombustible Facing
Material
763
Without Hood
8"
38¹⁄₂"
20"
4"
Front
Edge of 3"
Grate
764
3. Mantel Clearances:
When installing an ANSI Z21.11.2 ventless appli-
ance, the finishing material used for the mantel must
be rated at 250°F or greater. Refer to firebox instruc-
tions for any further information.
Without hood: If no hood is installed, then there
must be non-combustible material from the top front
opening of the fireplace to a height of at least 20
inches and the full width of the fireplace. A combus-
tible flat mantel shelf can be no closer than 38¹⁄₂"
from the top front of the fireplace opening (Fig. 7B).
With hood: If a hood is installed there must be non-
combustible material from the top front opening of
the fireplace to a height of 7¹⁄₂" and the full width of
the fireplace. A combustible flat mantel shelf may be
installed according to the detail in Figure 7C.
3A. Mantel Depth:
A combustible mantel can be no deeper than 8", at
12" above the hood. (Figs. 7B and 7C)
4. Grate Clearance
The minimum clearance between the front legs of the
grate and the front edge of the fireplace is 3" (Fig. 7B).
7C
With Hood
Flat
Mantel
Shelf
Stand-off
8"
4"
12"
7¹⁄₂"
Seal with
Noncom-
bustible
4" Hood
Material
765
9