Gas Pressure And Heat Input Charts; High Altitude Gas Requirement - ORTAL Front Facing Series Installation And Operation Manual

Gas Pressure and Heat Input Charts

The following table lists gas pressures and heat input values for models using the installation code ANSI
Z21.88/CSA 2.33 for vented gas fireplace heaters.
UNIT
BURNER
SERIES
40H70 30
60x80
75 45
75x65
110
120 100
130
150
135
170
200 160
250 180
The following table lists gas pressures and heat input values for models using the installation code ANSI
Z21.50/CSA 2.22 for decorative vented gas fireplaces.
UNIT
BURNER
SERIES
Traditional 45D

High Altitude Gas Requirement

For elevations above 2,000 feet, appliance shall be re-rated 4% for each 1,000 feet above sea level.
Ortal Installation Manual: Built-in Models, September 2018
Pressures
GAS TYPE
(Inch W.C.)
Min
Natural Gas (NG) 5.0
Propane (LP) 11.0
Natural Gas (NG) 5.0
Propane (LP) 11.0
Natural Gas (NG) 5.0
Propane (LP) 11.0
Natural Gas (NG) 5.0
Propane (LP) 11.0
Natural Gas (NG) 5.0
Propane (LP) 11.0
Natural Gas (NG) 5.0
Propane (LP)
Inlet
Pressures
GAS TYPE
(Inch W.C.)
Min
Natural Gas
5.0
(NG)
Propane (LP)
Inlet Manifold
Pressures
(Inch W.C.)
Max Min Max
10.0 0.9 3.2
13.0 0.9 10.9
10.0 0.9 4.7
13.0 0.9 10.7
10.0 0.9 5
13.0 0.9 10.8
10.0 0.9 3.5
13.0 0.9 10.7
10.0 0.9 4.5
13.0 0.9 10.6
10.0 0.9 4.7
250 series is unavailable with propane.
Manifold
Pressures
(Inch W.C.)
Max Min Max
10.0 0.9 5.2
Traditional series is unavailable with propane.
Heat Input ORIFICE
BTU/hr
Min Max
10,400 23,700
12,800 21,000
16,147 29,100
13,811 22,118
22,800 37,167
22,900 28,541
23,300 43,715
27,100 36,850
24,222 51,277
26,400 36,900
21,7000 52,700
Heat Input
BTU/hr ORIFICE
Min Max
9,000 55,000 800R/650F
SIZE
650
220
650
220
1200
260
1400
380
1400
380
1400
45