Technical data

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Page __________ of __________
Venting Requirements
INFRA-REZ
®
HEATER Model TR
• Compliance with National and Local Codes
• 4” Vent Pipe (24-gauge single-wall galvanized metal)
• Terminal Vent Cap
– Units installed in the U.S.A., use Reznor vent cap or equivalent
– Units installed in Canada., use Reznor vent cap only
• Vent Length - see table below
• Vent Terminal Direction - Horizontal or Vertical
• Dual Venting - with Optional Dual Vent Kit only**
• Unvented - Approved for Unvented Operation
Factors to Consider for Unvented Operation
– Check local codes
– Fresh Air Requirements - Natural gas, 4 CFM/1000 BTUH; Propane gas, 5 CFM/1000
BTUH
– Unvented operation may cause excessive condensation
– Do not operate unvented in dusty or dirty atmosphere
– Do not operate unvented in a building where contaminants in the air will produce a
toxic gas when burned or exposed to high temperature
– Do not operate unvented with outside combustion air
**Technical data for these options is found elsewhere in this catalog.
SINGLE WALL METAL VENT PIPE
50 75 100
Meters
6.1 7.6 9.1 6.1 7.6 9.1 10.7 12.2 9.1 10.7 12.2 13.7 15.2
Feet
20 25 30 20 25 30 35 40 30 35 40 45 50
mm
102 102 102
in.
44 4
Meters
1.5 1.5 1.5
Feet
55 5
Meters
6.1 13.7 10.7 6.1 13.7 10.7 6.1
Feet
20 45 35 20 45 35 20
Meters
0.9 1.8 1.5 0.9 1.8 1.5 0.9
Feet
3 6 536 53
Meters
0.5 0.9 0.8 0.5 0.9 0.8 0.5
Feet
1.5 3.0 2.5 1.5 3.0 2.5 1.5
Meters
0.9 1.8 1.5 0.9 1.8 1.5 0.9
Feet
3 6 536 53
150 175 200
Meters
15.2 16.8 18.3 15.2 16.8 18.3 19.8 21.3 15.2 16.8 18.3 19.8 21.3
Feet
50 55 60 50 55 60 65 70 50 55 60 65 70
mm
102 102 102
in.
44 4
Meters
1.5 1.5 1.5
Feet
55 5
Meters
18.3 18.3 18.3
Feet
60 60 60
Meters
3.7 3.7 3.7
Feet
12 12 12
Meters
1.8 1.8 1.8
Feet
6.0 6.0 6.0
Meters
3.7 3.7 3.7
Feet
12 12 12
Equivalent
Length for
Length
Vent Diameter
Minimum
Maximum
Vent
Length
Maximum
90° Elbow
45° Elbow
Dual Vent
Adapter*
Model No.
Equivalent
Length for
90° Elbow
45° Elbow
Dual Vent
Adapter*
Model No.
Length
Vent Diameter
Vent
Length
Minimum