Appliances / Heat pump water heaters / A. O. Smith
A. O. Smith heat pump water heaters ranked by running cost
61 ENERGY STAR certified A. O. Smith models, cheapest to run first, at the U.S. average electricity price.
| Model | Type | Size | Per year | 13 years |
|---|---|---|---|---|
| HPS10-50H45DV 2 series | 240-volt integrated | 46 gal | $151 | $1,965 |
| HPSN10-50H45DV 2 series | 240-volt integrated | 46 gal | $151 | $1,965 |
| HPTS-50 2 series | 240-volt integrated | 46 gal | $151 | $1,965 |
| CAHP-50 2 series | 240-volt integrated | 46 gal | $161 | $2,088 |
| HPA10-50H45DV 2 series | 240-volt integrated | 46 gal | $161 | $2,088 |
| HPTA-50 2 series | 240-volt integrated | 46 gal | $161 | $2,088 |
| CAHP-40 2 series | 240-volt integrated | 36 gal | $164 | $2,133 |
| HP1050H45DV 1 series | 240-volt integrated | 46 gal | $164 | $2,133 |
| HP1050H45DVCTA-1 series | 240-volt integrated | 46 gal | $164 | $2,133 |
| HPA10-40H45DV 2 series | 240-volt integrated | 36 gal | $164 | $2,133 |
| HPTA-40 2 series | 240-volt integrated | 36 gal | $164 | $2,133 |
| HPTU-50CTA 1 series | 240-volt integrated | 46 gal | $164 | $2,133 |
| HPTU-50DR 1 series | 240-volt integrated | 46 gal | $164 | $2,133 |
| HPTU-50N 1 series | 240-volt integrated | 46 gal | $164 | $2,133 |
| HPACO-45 1**+AXST-50LBTTP 1** family | split-system | 48 gal | $166 | $2,164 |
| HPACO-45C 1**+AXST-50LBCTTP 1* family | split-system | 48 gal | $166 | $2,164 |
| HPACO-45 1**+AXST-50S 1** family | split-system | 46 gal | $168 | $2,183 |
| HPACO-45 1**+AXST-50STTP 1** family | split-system | 46 gal | $168 | $2,183 |
| HPACO-45 1**+AXST-50T 1** family | split-system | 45 gal | $168 | $2,183 |
| HPACO-45 1**+AXST-50TTTP 1** family | split-system | 45 gal | $168 | $2,183 |
| HPACO-45C 1**+AXST-50SC 1** family | split-system | 46 gal | $168 | $2,183 |
| HPACO-45C 1**+AXST-50SCTTP 1** family | split-system | 46 gal | $168 | $2,183 |
| HPACO-45C 1**+AXST-50TC 1** family | split-system | 45 gal | $168 | $2,183 |
| HPACO-45C 1**+AXST-50TCTTP 1** family | split-system | 45 gal | $168 | $2,183 |
| FPTU-50 1 series | 240-volt integrated | 46 gal | $176 | $2,294 |
| HPS10-66H45DV 2 series | 240-volt integrated | 67 gal | $224 | $2,916 |
| HPSN10-66H45DV 2 series | 240-volt integrated | 67 gal | $224 | $2,916 |
| HPTS-66 2 series | 240-volt integrated | 67 gal | $224 | $2,916 |
| CAHP-80 2 series | 240-volt integrated | 81 gal | $233 | $3,024 |
| HPA10-80H45DV 2 series | 240-volt integrated | 81 gal | $233 | $3,024 |
| HPS10-80H45DV 2 series | 240-volt integrated | 82 gal | $233 | $3,024 |
| HPSN10-80H45DV 2 series | 240-volt integrated | 82 gal | $233 | $3,024 |
| HPTA-80 2 series | 240-volt integrated | 81 gal | $233 | $3,024 |
| HPTS-80 2 series | 240-volt integrated | 82 gal | $233 | $3,024 |
| CAHP-66 2 series | 240-volt integrated | 68 gal | $235 | $3,055 |
| HPA10-66H45DV 2 series | 240-volt integrated | 68 gal | $235 | $3,055 |
| HPTA-66 2 series | 240-volt integrated | 68 gal | $235 | $3,055 |
| HPACO-45 1**+AXST-80 1** family | split-system | 73 gal | $238 | $3,088 |
| HPACO-45 1**+AXST-80TTP 1** family | split-system | 73 gal | $238 | $3,088 |
| HPACO-45C 1**+AXST-80C 1** family | split-system | 73 gal | $238 | $3,088 |
| HPACO-45C 1**+AXST-80CTTP 1** family | split-system | 73 gal | $238 | $3,088 |
| HPACO-45 1**+AXST-66 1** family | split-system | 60 gal | $244 | $3,171 |
| HPACO-45 1**+AXST-66TTP 1** family | split-system | 60 gal | $244 | $3,171 |
| HPACO-45C 1**+AXST-66C 1** family | split-system | 60 gal | $244 | $3,171 |
| HPACO-45C 1**+AXST-66CTTP 1** family | split-system | 60 gal | $244 | $3,171 |
| HPTU-66CTA 1 series | 240-volt integrated | 67 gal | $251 | $3,266 |
| HPTU-66DR 1 series | 240-volt integrated | 67 gal | $251 | $3,266 |
| HPTU-66N 1 series | 240-volt integrated | 67 gal | $251 | $3,266 |
| HP1080H45DV 1 series | 240-volt integrated | 82 gal | $252 | $3,280 |
| HP1080H45DVCTA-1 series | 240-volt integrated | 82 gal | $252 | $3,280 |
| HPTU-80CTA 1 series | 240-volt integrated | 82 gal | $252 | $3,280 |
| HPTU-80DR 1 series | 240-volt integrated | 82 gal | $252 | $3,280 |
| HPTU-80N 1 series | 240-volt integrated | 82 gal | $252 | $3,280 |
| FPTU-66 1 series | 240-volt integrated | 67 gal | $253 | $3,289 |
| FPTU-80 1 series | 240-volt integrated | 82 gal | $254 | $3,301 |
| HPTV-50 2 series | 120-volt integrated | 46 gal | $282 | $3,665 |
| HPTV-66 2 series | 120-volt integrated | 68 gal | $282 | $3,665 |
| HPV10-50H01DV 2 series | 120-volt integrated | 46 gal | $282 | $3,665 |
| HPV10-66H01DV 2 series | 120-volt integrated | 68 gal | $282 | $3,665 |
| HPTV-80 2 series | 120-volt integrated | 82 gal | $301 | $3,911 |
| HPV10-80H01DV 2 series | 120-volt integrated | 82 gal | $301 | $3,911 |