Installation manual
www.desatech.com
901265-01S6
BURNER ORIFICE
LOG NATURAL PROPANE/LP
SIZE IN. NUM. IN. NUM.
CVSR18, CPVSR18
CVDR18
0.120 31 0.073 49
CVSR24, CPVSR24
CVDR24, BFLT18
0.129 30 0.086 44
CVDR30, BFLT24 0.1405 28 0.089 43
Model
Burner
Description
Btu/Hr Input
Natural Gas
Btu/Hr Input
Propane/LP
Gas
Vent
Opening
CPVSR18
CVSR18
18"
Single
50,000 40,000 8" dia.
CPVSR24
CVSR24
24"
Single
60,000 50,000 8" dia.
CVDR18
18"
Dual
55,000 45,000 8" dia.
CVDR18
CVDR24
24"
Dual
65,000 55,000 8" dia.
CVDR24
30"
Dual
70,000 60,000 8" dia.
BFLT18
18"
Triple
65,000 55,000 8" dia.
BFLT24
24"
Triple
70,000 60,000 8" dia.
*Add 6" if safety valve/pilot is used
**At depth indicated
FUEL INLET PRESSURE
Min. Max.
NG 5.5" 10.5"
LP 11" 13"
Figure 2 - Technical Information Charts
MINIMUM FIREBOX SIZES
Models: CPVSR18, CVSR18, CVDR18
Front Width* Back Width** Depth Height
28" 16" 14" 18"
Models: CPVSR24, CVSR24, CVDR24
Front Width* Back Width** Depth Height
29
3
/
4
" 17" 15
1
/
2
" 18"
Model: CVDR30
Front Width* Back Width** Depth Height
36" 27" 18" 18"
Model: BFLT18
Front Width* Back Width** Depth Height
28" 16" 15
1
/
2
" 18"
Model: BFLT24
Front Width* Back Width** Depth Height
30" 22" 15
1
/
2
" 18"
INSTALLATION
Continued
-
this type of gas appliance. Only
-
hazardous condition.
FLUE OPENING SPECIFICATIONS
Note: This vented appliance must be installed
only in a solid-fuel burning replace with a
working ue and constructed of noncombus-
tible material.
The charts in Figure 2, indicate technical
information regarding the installation of your
gas log set. Please make sure that all of the
specications shown are applicable before
installation is attempted.
The replace must include a working ue and
venting system with the minimum openings
shown in the Figure 2.