Specification Sheet
© September 2016 A. O. Smith Corporation. All rights reserved.
www.hotwater.com | 800-527-1953 Toll-Free USA | A. O. Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015
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AOSRG45100
HELICAL INTERNAL HEAT EXCHANGER
• Spiral heat exchanger keeps hot combustion
gases in the tank longer to lengthen the heat
transfer cycle
• Positioned in the center of the tank for more
even heat distribution
• Operates at 90% thermal efficiency, which
saves money on operating costs compared to
a standard 78% efficient gas water heater
POWER VENT DESIGN
• Combined vertical and horizontal runs
terminating through an outside wall. Vents
using PVC, CPVC, or polypropylene pipe.
Canadian installations require ULC S636
approved pipe for venting.
• 2” pipe, vents up to 25 equivalent feet
• 3” pipe, vents up to 65 equivalent feet
• 4” pipe, vents up to 128 equivalent feet
MODULAR BLOWER
• Equipped with 120 volt, 60 Hz electrical
system (rating 5 amps or less), 6-foot cord
with standard 3-prong connector
• 2” PVC pipe, elbows and condensate drain
supplied to connect heat exchanger outlet
to blower
SIDE-MOUNTED HOT AND COLD
RECIRCULATING TAPS
• Allows Vertex to be installed as part of
combination space heating/water heating
applications or any system requiring a
recirculating hot water loop, including radiant
floor heating
INTELLI-VENT
™
** GAS CONTROL
• Equipped with a robust silicon nitride hot
surface ignitor — no standing pilot
• Advanced electronics for more precise control
of water temperature and easy to understand
system diagnostics
BLUE DIAMOND
®
GLASS COATING
TWO HEAVY-DUTY ANODE RODS
• Provide maximum protection against
corrosion
GREEN CHOICE
®
GAS BURNER
• Patented eco-friendly burner design reduces
NOx emissions by up to 33% and complies
with Low-NOx emission requirements of less
than 40 ng/J.
CSA CERTIFIED AND ASME RATED T&P
RELIEF VALVE
MAXIMUM HYDROSTATIC WORKING
PRESSURE: 150 PSI
CODE COMPLIANCE
• Meets UBC, CEC and ICC National Codes.
• Meets the thermal efficiency and standby
loss requirements of the U.S. Department of
Energy and current edition of ASHRAE/IES
90.1.
DESIGN-CERTIFIED BY
UNDERWRITERS LABORATORIES
• Certified at 300 psi test pressure and 150 psi
working pressure. Listed according to ANSI
Z21.10.3 - CSA 4.3 standards governing
storage tank-type water heaters.
6-YEAR LIMITED TANK AND PARTS
WARRANTY
• For complete information, consult written
warranty or go to hotwater.com
VERTEX
™
90% THERMAL EFFICIENCY
VERSATILE POWER VENT DESIGN
Residential Gas
Water Heaters
Today’s homes demand more hot water than ever before, and the 90% efficient Vertex
™
power
vent gas water heater offers unprecedented levels of performance to meet the need. The
50-gallon Vertex delivers more hot water than a standard 75-gallon atmospheric gas water
heater. In fact, the fully condensing Vertex design is so advanced, it can deliver “continuous hot
water for shower after shower”at a constant flow of over 3 gallons per minute.* Yet Vertex is
easy to install, with height, diameter and installation requirements similar to standard power
vent units.
* Continuous hot water based on 3.07 GPM continuous
flow with a 65°F inlet water temperature, 110°F outlet
temperature, and a unit installed per the manufacturer’s
instructions.
**Intelli-Vent™ is a trademark of Emerson Electric
Company
SERIES 110