MONESSEN Exacta BUF42 Architect Guide

MONESSEN
Brand
MONESSEN
Model
Exacta BUF42
Type
Architect Guide

MONESSEN Exacta BUF42

This vent-free gas firebox provides a captivating focal point in your living space. With its 42" viewing area, you can enjoy the beauty and warmth of a cozy fire without the need for a chimney. The BUF42 offers flexible installation options, allowing you to place it above or below the hearth with outside air access. Its durable construction ensures longevity, while the optional trim kit lets you customize the look to match your décor.

MONESSEN Exacta BUF42

This vent-free gas firebox provides a captivating focal point in your living space. With its 42" viewing area, you can enjoy the beauty and warmth of a cozy fire without the need for a chimney. The BUF42 offers flexible installation options, allowing you to place it above or below the hearth with outside air access. Its durable construction ensures longevity, while the optional trim kit lets you customize the look to match your décor.

Specifications
Additional information can be found online at www.monessenhearth.com
Please consult the manufacturer’s
installation manual for all details and
requirements before making a final
design layout decision.
Exacta 42
Vent Free Gas Firebox
Exacta BUF42
MODEL FRONT WIDTH BACK WIDTH HEIGHT DEPTH VIEWING AREA
BUF42 Actual Framing Actual Framing Actual Framing Actual Framing 42" x 27"
48" 48-1/2" 37-1/4" 48-1/2" 34" 34-1/4" 20" 19-3/4"
48" (1219 mm)
4"
(102 mm)
27"
(686 mm)
3"
(76 mm)
34"
(864 mm)
42" (1067 mm)
20"
(508 mm)
15-7/8"
(403 mm)
5-3/4"
(146 mm)
5-3/4"
(146 mm)
15-7/8 in
(403 mm)
2"
(51 mm)
7-3/4"
(197 mm)
2"
(51 mm) 9-3/8"
(238 mm)
Gas Access
Above Hearth
Outside Air
Electrical Access
Wall Switch
Strain Relief
Outside
Air Gas Access
Above Hearth
Gas Access
Below Hearth
37-1/4" (946 mm)
FRONT VIEW TOP VIEW
LEFT SIDE VIEW RIGHT SIDE VIEW
Specifications
MON/BUF42_0321
(877) 863-4350 | monessenhearth.com
Exacta BUF42
CLEARANCES TO COMBUSTIBLES
38-7/8"
15"
30-3/8"
25-1/2" 22-5/8"
FP2901
hearth dims
Model A B C D E
ACUF32-BD 28.88 15.00 20.38 25.50 22.62
ACUF36-BD 32.88 15.00 24.38 25.50 22.62
ACUF42-BD 38.88 15.00 30.38 25.50 22.62
ACUF32-GD 28.88 15.00 20.38 25.50 22.62
ACUF36-GD 32.88 15.00 24.38 25.50 22.62
ACUF42-GD 38.88 15.00 30.38 25.50 22.62
Minimum Side Wall
Unit Gray area is
combustible
material
White area is
non-combustible
material only
1"
2"
3"
4"
5"
6"
7"
8"
9"
1"
2"
3"
4"
5"
6"
9”
6”
9”
MINIMUM HEARTH DIMENSIONS
MANTEL LEG CLEARANCES
0" to back
0" to side
0"
Drywall
Combustible flooring may be installed next to the front of the appliance.
(No carpet or vinyl within 14")
6"
(152 mm) min.
9"
(229 mm) min.
(from firebox opening)
Drywall
Perpendicular
Wall
36"
(914 mm)
Combustible Object
42" to ceiling
(1067 mm)
0"
0"
9
Monessen • ACUF32/36/42 Installation Manual • 4136-901 • Rev A • 01/21
A5/8"
B
F
E
D
D
5/8"
C
MODEL A B C D E F
ACUF32-BD 38-1/2 in (978 mm) 34-1/4 in (870 mm) 19-3/4 in (502 mm) 47-1/4 in (1201 mm) 66-3/4 in (1696 mm) 33-1/2 in (851) mm
ACUF36-BD 42-1/2 in (1080 mm) 50 in (1270 mm) 70-3/4 in (1798 mm) 36 in (915 mm)
ACUF42-BD 48-1/2 in (1232 mm) 54-1/4 in (1378 mm) 76-3/4 in (1950 mm) 38-1/2 in (978 mm)
ACUF32-GD 38-1/2 in (978 mm) 47-1/4 in (1201 mm) 66-3/4 in (1696 mm) 33-1/2 in (851 mm)
ACUF36-GD 42-1/2 in (1080 mm) 50 in (1270 mm) 70-3/4 in (1798 mm) 36 in (915 mm)
ACUF42-GD 48-1/2 in (1232 mm) 54-1/4 in (1378 mm) 76-3/4 in (1950 mm) 38-1/2 in (978 mm)
34-1/4 in (870 mm)
34-1/4 in (870 mm)
34-1/4 in (870 mm)
34-1/4 in (870 mm)
34-1/4 in (870 mm)
19-3/4 in (502 mm)
19-3/4 in (502 mm)
19-3/4 in (502 mm)
19-3/4 in (502 mm)
19-3/4 in (502 mm)
Note: Add 1/2" to width (A) and 1/4" to
height (B) dimensions when using optional
trim kit to finish the installation of a custom
cabinet, mantle, or other built-in enclosure.
A B C D E F
48-1/2"
(1232mm)
34-1/4"
(870mm)
19-3/4"
(502mm)
54-1/4"
(1378mm)
76-3/4"
(1950mm)
38-1/2"
(978mm)
FRAMING DIMENSIONS
PRODUCT LISTING CODES
US ANSI Z223.1 / NFPA54
ANSI Z21.11
CSA Design Certified
Additional information can be found online at www.monessenhearth.com
Product information provided is not
complete and is subject to change
without notice. Product installation
must adhere strictly to instructions
accompanying product to avoid risk
of fire and potential injury.
MANTEL CLEARANCES
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
12"
13"
14"
15"
16"
17"
18"
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
12"
13"
14"
15"
16"
17"
18"
Gray area is
combustible
material
White area is
non-combustible
material
Measured from top of appliance opening
6"
minimum
18" maximum
17"
17"
3" minimum
Dimensions shown
are with concrete liner
installed.
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MONESSEN Exacta BUF42 Architect Guide

MONESSEN
Brand
MONESSEN
Model
Exacta BUF42
Type
Architect Guide

MONESSEN Exacta BUF42

This vent-free gas firebox provides a captivating focal point in your living space. With its 42" viewing area, you can enjoy the beauty and warmth of a cozy fire without the need for a chimney. The BUF42 offers flexible installation options, allowing you to place it above or below the hearth with outside air access. Its durable construction ensures longevity, while the optional trim kit lets you customize the look to match your décor.

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