DVRT41 Direct Vent Gas Fireplace
Clearance to Combustibles
Top of unit to ceiling | 36” (914mm) |
Front of unit to combustibles | 36” (914mm) |
Appliance |
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Top of standoff | 0” (0mm) |
Bottom | 0” (0mm) |
Side | 0” (0mm) |
Back | 0” (0mm) |
Venting |
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Concentric sections of DV Vent | 1” (25mm) |
Nonconcentric sections of DV Vent |
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Sides and bottom | 1” (25mm) |
Top | 2” (51mm) |
Mantels
The height that a combustible mantel is fitted above the fireplace is dependent on the depth of the mantel. This also applies to the distance between the mantel leg (if fitted) and the fireplace.
For the correct mounting height and widths, refer to Figures 4a, 4b and the Mantel Chart below.
The distances and reference points are not affected by the fitting of a bay window front trim kit. Noncombustible mantels and legs may be installed at any height and width around the appliance. When using paint or lacquer, it must be heat resistant to prevent discoloration.
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Black |
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Surround |
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Face |
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| Mantel |
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CFM164a |
| Leg |
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| K |
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Side of |
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| L |
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| M |
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Combustion Chamber |
| N |
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| O |
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| CFM170 |
| Mantel |
| Mantel Leg from Side | ||
Ref. | Leg Depth | Ref. | of Comb. Opening | ||
F | 10” (254mm) | K | 11¹⁄₂” (292mm) | ||
V
W
X
Y
Z
A B C D E
Bottom of Door Trim 
Maintain minimum 3/4” (19mm) clearance to combustible
Fireplace
Louvre
Assembly Top
Top of Combustion
Chamber
G | 8” (203mm) | L | 9¹⁄₂” (241mm) |
H | 6” (152mm) | M | 7¹⁄₂” (191mm) |
I | 4” (101mm) | N | 5¹⁄₂” (140mm) |
J | 2” (51mm) | O | 3¹⁄₂’” (89mm) |
Fig. 4b Combustible mantel leg minimum installation.
Hearth
A hearth is not mandatory, but is recommended for aesthetic purposes. We recommend a noncombustible hearth which projects out 12” (305mm) or more from the front of the fireplace.
Cold climate installation recommendation:
When installing this unit against a non-
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| Mantel Chart | CFM146 | ||
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| Mantel Shelf |
| Mantel from Top | |
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| or Breast Plate | Ref. | of Comb. Chamber | |
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| Depth |
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| V |
| 10” (254mm) | A |
| 19” (483mm) |
| W |
| 8” (203mm) | B |
| 17” (432mm) |
| X |
| 6” (152mm) | C |
| 15” (381mm) |
| Y |
| 4” (101mm) | D |
| 13” (330mm) |
| Z |
| 2” (51mm) | E |
| 11” (279mm) |
| Fig. 4a | Combustible mantel minimum installation. | ||||
insulated exterior wall or chase, it is mandatory that the outer walls be insu- lated to conform to applicable insulation codes.
6 | 10006740 |
