Installation – Desa BVDR18 User Manual
Page 6
www.desatech.com
901746-01E
6
Figure 3 - Attaching Damper Clamp
Damper
Damper
Clamp
Damper
Manufactured Fireplace
Masonry Fireplace
Damper
Clamp
Damper
INSTALLATION
Continued
Figure 2 - Technical Information Charts
MINIMUM FIREBOX SIZES
MODEL
FRONT
WIDTH*
BACK
WIDTH**
DEPTH
HEIGHT
18SR/DR
28"
16"
14"
18"
24SR/DR
29
3
/
4
"
17"
15
1
/
2
"
18"
30DR
36"
27"
18"
18"
* Add 6" if safety valve/pilot is used.
**At depth indicated.
MODEL
DESCRIPTION
Btu/Hr Input
Natural Gas
Btu/Hr Input
Propane/LP Gas
Minimum
vent Opening
BVSR18
18" Single Burner
50,000
40,000
8" dia.
BVSR24
24" Single Burner
60,000
50,000
8" dia.
BVDR18
18" Dual Burner
55,000
45,000
8" dia.
BVDR24
24" Dual Burner
65,000
55,000
8" dia.
BVDR30
30" Dual Burner
70,000
60,000
8" dia.
FUEL INLET PRESSURE
SPECIFICATIONS (W.C.)
Min.
Max.
NG
5.5"
10.5"
LP
11"
13"
BURNER ORIFICE
LOG SIZE
Natural
Propane/LP
In.
Num.
In.
Num.
18SR/DR
0.120
31
0.073
49
24SR/DR
0.129
30
0.086
44
CHECk GAS TYPE
Use only natural gas. If your gas supply is not
natural gas, you must install ON/OFF Safety
Valve/Pilot Kit (see Accessories, page 19).
Call dealer where you bought your log set.
If the fireplace does not have a gas supply
shutoff valve, one must be installed.
VENTING SPECIFICATIONS FOR
INSTALLATION
Fireplace chimney flue and vent must be draft-
ing properly. To check vent for proper drafting:
Light a tightly rolled newspaper on one end
and place at inside front edge of fireplace.
Observe smoke and be sure vent is properly
drawing it up the chimney. If smoke spills out
into room, extinguish flame and remove any
obstruction until proper venting is achieved.
Chimney flue damper must be fixed open to
provide a minimum of 64 sq. in. of free air
opening during operation of this log set. A
multipurpose damper clamp is provided to fix
the damper in position.
INSTALLING DAMPER CLAMP
Secure damper stop clamp provided to
leading edge of damper as shown in Figure
3. If for any reason this clamp doesn't work
on your fireplace, another suitable clamp or
permanent stop must be installed, or damper
blade must be cut or removed.