For millions of consumers, business owners, property managers and engineers worldwide, A. O. Smith has delivered innovative hot water solutions for over 70 years.

Sold exclusively by plumbing wholesalers and plumbing contractors, A. O. Smith’s selection of residential and commercial water heaters, boilers and storage tanks is unmatched for quality and diversity.  Anywhere hot water is needed, A. O. Smith can provide an energy-efficient solution with maximum value during and for years after installation.  And, A. O. Smith stands behind its products and its customers with world-class service, combining cutting-edge technology with committed people who take pride in being the very best.

ENERGY STAR® Program

Sponsored by the U. S. Environmental Protection Agency and the Department of Energy, the ENERGY STAR® program promotes environmentally conscious products, which often can translate into savings for homeowners. The following A. O. Smithhigh-efficiencyy models have been recognized as ENERGY STAR® water heaters. These are ideal hot water solutions for the homeowner looking to go green and save green.

High Efficiency Models
Model Number Series Gallon Capacity Energy Factor Recovery Rise 90oF GPH Vent Connection (Inches) Input BTU/HR Height* Diameter First Hour Rating Gallons
6-Year Tank and Parts Warranty
GAHH-40 102 40 0.70 43 3 or 4 40,000 61 3/4 20 70
GAHH-50 100 50 0.70 43 3 or 4 40,000 60 5/8 22 81
Tall Models
GCF-40 100 40 0.67 42 3 or 4 40,000 64 1/4 20 67
GCF-50 100 50 0.67 42 3 or 4 40,000 63 1/2 22 81
Short Models
GCFL-40 100 40 0.67 42 3 or 4 40,000 54 22 67

Power Vent Models
GPVL-40 200 40 0.70 44.7 2, 3 or 4 40,000 59 22 73
GPVT-40 200 40 0.70 55.9 2, 3 or 4 50,000 68-1/2 20 90
GPVL-50 200 50 0.70 44.7 2, 3 or 4 40,000 60-1/8 24 90
GPVT-50 200 50 0.70 55.9 2, 3 or 4 50,000 68-1/8 22 96
GPVX-50L 200 50 0.70 69.3 2, 3 or 5 62,000 61-1/8 24 110
GPVX-75L 200 75 0.67 80.4 2, 3 or 6 72,000 70-5/8 26 155

*Height to top of draft hood
Propane inputs: GPVR-40, GPVR-50: 40,000 BTU

High Recovery Power Vent Models
Model Number Series Gallon Capacity Thermal Efficiency Recovery Rise 90oF GPH Vent Connection (Inches) Input BTU/HR Height* Diameter Standby Loss (BTUs/Hr)
GPHE-50 100 50 90% 92 2 76,000 70-5/8 22 364
GDHE-50 130 50 96% 129 2 or 3 100,000 66-3/4 22 499
GDHE-75 130 75 96% 129 2 or 3 100,000 64-3/4 27-3/4 –
GDHE-50 131 50 96% 129 2 or 3 100,000 66-3/4 22 499
GDHE-75 131 75 96% 129 2 or 3 100,000 64-3/4 27-3/4 –

*Height to top of draft hood

Tankless Models
Model Number Type BTU Input Natural/Propane Energy Factor (EF) Hot Water Output (GPM)
Minimum Maximum Maximum 45°F Rise 70°F Rise
Condensing
ATI-140H-N Indoor/Natural 15,000 120,000 0.93 6.6 6.6 4.3
ATI-140H-P Indoor/Propane 15,000 120,000 0.93 6.6 6.6 4.3
ATO-140H-N Outdoor/Natural 15,000 120,000 0.93 6.6 6.6 4.3
ATO-140H-P Outdoor/Propane 15,000 120,000 0.93 6.6 6.6 4.3
ATI-240H-N Indoor/Natural 15,000 160,000 0.95 6.6 6.6 4.3
ATI-240H-P Indoor/Propane 13,000 160,000 0.95 6.6 6.6 4.3
ATI-320H-N Indoor/Natural 13,000 180,000 0.91 8.0 7.3 4.7
ATI-320H-P Indoor/Propane 13,000 180,000 0.91 8.0 7.3 4.7
ATI-340H-N Indoor/Natural 15,000 180,000 0.95 8.0 7.6 4.9
ATI-340H-P Indoor/Propane 13,000 180,000 0.95 8.0 7.6 4.9
ATI-520H-N Indoor/Natural 13,000 199,000 0.91 9.0 8.1 5.2
ATI-520H-P Indoor/Propane 13,000 199,000 0.91 9.0 8.1 5.2
ATI-540H-N Indoor/Natural 15,000 199,000 0.95 10.0 8.4 5.4
ATI-540H-P Indoor/Propane 13,000 199,000 0.95 10.0 8.4 5.4
ATO-320H-N Outdoor/Natural 13,000 180,000 0.91 8.0 7.3 4.7
ATO-320H-N Outdoor/Natural 13,000 180,000 0.91 8.0 7.3 4.7
ATO-520H-N Outdoor/Natural 13,000 199,000 0.91 9.0 8.1 5.2
ATO-520H-P Outdoor/Propane 13,000 199,000 0.91 9.0 8.1 5.2
AT0-240H-N Outdoor/Natural 15,000 160,000 0.95 6.6 6.6 4.3
ATO-240H-P Outdoor/Propane 13,000 160,000 0.95 6.6 6.6 4.3
ATO-340H-N Outdoor/Natural 15,000 180,000 0.95 8.0 7.6 4.9
ATO-340H-P Outdoor/Propane 13,000 180,000 0.95 8.0 7.6 4.9
ATO-540H-P Outdoor/Natural 15,000 199,000 0.95 10.0 8.4 5.4
ATO-540H-P Outdoor/Propane 13,000 199,000 0.95 10.0 8.4 5.4

 

Hybrid Electric Models
Model Number Gallon Capacity Energy Factor By Mode 1st Hour Rating Galon By Mode Standard Voltage No. Of Elements Standard Input (KW) Upper/Lower Height (Inches) Diameter (Inches)
Eff Hybrid Elect Eff Hybrid Elect
10-Year Tank and Parts Warranty
SHPT-50 50 2.78 2.75 .89 42.1 67.5 59.1 240 2 4500/4500 63 22
PHPT-60 60 2.40 2.33 .88 51 68 66 240 2 4500/2000 67-1/3 24 1/2
PHPT-80 80 2.30 2.33 .85 70 84 76 240 2 4500/2000 81-1/2 24 1/2

 

 

Cirrex® Solar System Packages
Model Number Heat Exchanger Solar Energy Factor* Number of Solar Collectors
Deluxe Solar System Packages
SACI-01-M200501 Single Wall Internal Coil 1.9 – 2.2 1
SACI-02-M200202 Single Wall Internal Coil 2.3 – 3.0 2
SACI-02-M200402 Single Wall Internal Coil 3.3 – 5.3 2
SACI-03-M200203 Single Wall Internal Coil 4.9 – 10.1 3
SACE-01-M100501 Double Wall External Plate 1.7 – 1.8 1
SACE-02-M100202 Double Wall External Plate 2.1 – 2.2 2
SACE-02-M100402 Double Wall External Plate 2.8 – 3.0 2
SACE-03-M100203 Double Wall External Plate 3.5 – 4.3 3
Standard Solar System Packages
SACI-01-M200501-T41 Single Wall Internal Coil 1.9 – 2.2 1
SACI-02-M200202-T41 Single Wall Internal Coil 2.3 – 3.0 2
SACI-02-M200402-T41 Single Wall Internal Coil 3.3 – 5.3 2
SACI-03-M200203-T41 Single Wall Internal Coil 4.9 – 10.1 3
SACE-01-M100501-T41 Double Wall External Plate 1.7 – 1.8 1
SACE-02-M100202-T41 Double Wall External Plate 2.1 – 2.2 2
SACE-02-M100402-T41 Double Wall External Plate 2.8 – 3.0 2
SACE-03-M100203-T41 Double Wall External Plate 3.5 – 4.3 3

*Cirrex® solar models are eligible for 30% of total installed cost in tax credit, with no maximum limit.

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