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22 4034-102 Rev F 02/04
HRV200PLUS INSTALLATION INSTRUCTIONS
4. Chase/Termination Installation
Figure 12 and Table 1 specify minimum vent heights
for various pitched roofs.
These vent heights are necessary for safety and do
not ensure draft-free operation. Trees, buildings,
adjoining roof lines, adverse conditions, etc. may create
a need for a taller vent should down drafting occur.
Figure 12 - Vent Height for Vertical Termination
Roof Pitch H (Min.) Ft.
Flat to 6/12................................................ 1.0
6/12 to 7/12............................................... 1.25
Over 7/12 to 8/12...................................... 1.5
Over 8/12 to 9/12...................................... 2.0
Over 9/12 to 10/12.................................... 2.5
Over 10/12 to 11/12 .................................. 3.25
Over 11/12 to 12/12 .................................. 4.0
Over 12/12 to 14/12.................................. 5.0
Over 14/12 to 16/12.................................. 6.0
Over 16/12 to 18/12.................................. 7.0
Over 18/12 to 20/12.................................. 7.5
Over 20/12 to 21/12.................................. 8.0
Vent Height
Table 1