Innovation Water Heaters
– Edge [i] Controller
Venting and Combustion Air Design Guide
TAG-0090_A
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GF-5056
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2/20/2020
Technical Support
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(800) 526-0288
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Mon-Fri, 8 am - 5 pm EST Page 23 of 39
3.3.
Installation REQUIREMENTS for Vertical Venting
WARNING
DO NOT INSULATE OR OTHERWISE WRAP VENT PIPE OR FITTINGS. FOLLOW THE
VENT PIPE MANUFACTURERS INSTALLATION INSTRUCTIONS FOR VERTICAL
VENTING.
The vent termination must be located as follows (refer to Figure 10):
a. Combustion air inlet must be 3 ft. (0.9 m) below any vent outlet that is within 10 ft. (3.1
m).
b. Vertical terminations shall extend at least 3 ft. (0.9 m) above the highest point where it
passes through a roof of a building and at least 2 ft. (0.6 m) higher than any portion of the
building within a horizontal distance of 10 ft. (3.1 m). Terminations that extend more than
2 ft. above the roof must be laterally supported.
c. Combustion air inlet must also face away from the vent outlet.
d. Use vent pipe manufacturer
’s vent cap or exit cone (velocity cone), fire stop, support
collar, roof flushing and storm collar.
e. AERCO recommends the use of an exit cone in lieu of a termination rain cap for normal
installations and T- termination and H-termination for high-wind areas.
Figure 10: Acceptable Combustion Air Inlet & Vent Outlet Configuration
