HIGH EFFICIENCY WATER HEATERS
Think Green, Save GreenENERGY 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. We are pleased to announce that the following A. O. Smith high efficiency 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.
*Effective as of September 1, 2010.
| Model Number | Series | Gallon Capacity | Energy Factor | Recovery Rise 90oF GPH | Vent Connection (Inches) | Input BTU/HR | Height* | Diameter | First Hour Rating Gallons |
High Efficiency Models |
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 |
| GPHE 50 | 100 | 50 | 0.90 | 92 | 2 | 76,000 | 70-5/8 | 22 | 127 |
| GDHE 50 | 124 | 50 | 0.96 | 129 | 2 | 100,000 | 66-3/4 | 22 | 164 |
| GDHE 50 | 125 | 50 | 0.96 | 129 | 2 | 100,000 | 66-3/4 | 22 | 164 |
*Height to top of draft hood
Propane inputs: GPVR-40, GPVR-50: 40,000 BTU| Model Number* | Type | BTU Input Natural/Propane | Energy Factor (EF) | Hot Water Output (GPM) |
| Minimum | Maximum | | Maximum | 45°F Rise | 70°F Rise |
Tankless Models |
Non-Condensing |
| ATI-110-N | Indoor/Natural | 19,500 | 140,000 | 0.82 | 6.6 | 5.1 | 3.3 |
| ATI-110-P | Indoor/Propane | 19,500 | 140,000 | 0.82 | 6.6 | 5.1 | 3.3 |
| ATI-310-N | Indoor/Natural | 11,000 | 190,000 | 0.82 | 8.0 | 6.9 | 4.4 |
| ATI-310-P | Indoor/Propane | 11,000 | 190,000 | 0.82 | 8.0 | 6.9 | 4.4 |
| ATI-510-N | Indoor/Natural | 11,000 | 199,000 | 0.82 | 10.0 | 7.2 | 4.7 |
| ATI-510-P | Indoor/Propane | 11,000 | 199,000 | 0.82 | 10.0 | 7.2 | 4.7 |
| ATI-110U-N | Indoor/Natural | 15,000 | 140,000 | 0.82 | 6.6 | 5.1 | 3.3 |
| ATI-310U-N | Indoor/Natural | 15,000 | 190,000 | 0.82 | 8.0 | 7.2 | 4.4 |
| ATI-510U-N | Indoor/Natural | 15,000 | 199,000 | 0.82 | 10.0 | 6.9 | 4.7 |
| ATO-110-N | Outdoor/Natural | 19,500 | 140,000 | 0.82 | 6.6 | 5.1 | 3.3 |
| ATO-110-P | Outdoor/Propane | 19,500 | 140,000 | 0.82 | 6.6 | 5.1 | 3.3 |
| ATO-310-N | Outdoor/Natural | 11,000 | 190,000 | 0.82 | 8.0 | 6.9 | 4.4 |
| ATO-310-P | Outdoor/Propane | 11,000 | 190,000 | 0.82 | 8.0 | 6.9 | 4.4 |
| AT0-510-N | Outdoor/Natural | 11,000 | 199,000 | 0.82 | 10.0 | 7.2 | 4.7 |
| ATO-510-P | Outdoor/Propane | 11,000 | 199,000 | 0.82 | 10.0 | 7.2 | 4.7 |
| ATO-110U-N | Outdoor/Natural | 15,000 | 140,000 | 0.82 | 6.6 | 5.1 | 3.3 |
| ATO-310U-N | Outdoor/Natural | 15,000 | 190,000 | 0.82 | 8.0 | 6.9 | 4.4 |
| ATO-510U-N | Outdoor/Natural | 15,000 | 199,000 | 0.82 | 10.0 | 7.2 | 4.7 |
Condensing |
| 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 |
| 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 |
Hybrid Electric Models |
10-Year Tank and Parts Warranty |
| 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 models are eligible for 30% of total installed cost in tax credit, with no maximum limit.