Estimating Heat Pump Swimming Pool Heater Costs and Savings
For an outdoor swimming pool, use the following tables to help estimate your annual heat pump pool heater costs and savings compared to using an electric resistance or a gas pool heater.
Table 1 estimates annual swimming heat pump pool heating costs by location, by water temperature, and with or without using a pool cover.
| Location | Season | Temperature | ||
|---|---|---|---|---|
| 78° | 80° | 82° | ||
| Miami | 1/1–12/31 | $1100 | $1460 | $1845 |
| w/ cover | 1/1–12/31 | $215 | $300 | $410 |
| Phoenix | 3/1–10/31 | $680 | $875 | $1090 |
| w/ cover | 3/1–10/31 | $45 | $85 | $125 |
| Dallas | 4/1–10/31 | $760 | $970 | $1240 |
| w/ cover | 4/1–10/31 | $90 | $140 | $205 |
| Atlanta | 4/1–10/31 | $840 | $1110 | $1425 |
| w/ cover | 4/1–10/31 | $155 | $205 | $290 |
| Los Angeles | 5/1–10/31 | $950 | $1210 | $1485 |
| w/ cover | 5/1–10/31 | $85 | $155 | $240 |
| Kansas City | 5/1–10/31 | $715 | $935 | $1185 |
| w/ cover | 5/1–10/31 | $145 | $205 | $270 |
| New York | 5/1–9/30 | $740 | $975 | $1220 |
| w/ cover | 5/1–9/30 | $105 | $150 | $200 |
| Chicago | 5/1–9/30 | $810 | $1035 | $1270 |
| w/ cover | 5/1–9/30 | $105 | $150 | $195 |
| Denver | 5/1–8/31 | $875 | $1055 | $1245 |
| w/ cover | 5/1–8/31 | $70 | $100 | $150 |
| Boston | 5/1–8/31 | $875 | $1075 | $1280 |
| w/ cover | 5/1–8/31 | $120 | $165 | $235 |
| Minneapolis | 6/1–9/30 | $660 | $850 | $1040 |
| w/ cover | 6/1–9/30 | $100 | $125 | $190 |
| San Fran | 6/1–8/31 | $800 | $950 | $1110 |
| w/ cover | 6/1–8/31 | $95 | $165 | $240 |
| Seattle | 6/1–8/31 | $770 | $900 | $1035 |
| w/ cover | 6/1–8/31 | $150 | $215 | $280 |
*Figures based on a 1,000 square foot, outdoor pool heated with an air to water heat pump with an average COP of 5.0 at $.085/kwh.
Table 2 estimates the annual savings of using a heat pump pool heater compared to using an electric resistance or gas pool heater.
| Efficiency | Annual Cost | Cost w/ 5.0 COP | Heat Pump Savings |
|---|---|---|---|
| Gas Pool Heater | |||
| 55% | $584 | $200 | $384 |
| 60% | 535 | $200 | $335 |
| 65% | 494 | $200 | $294 |
| 70% | $459 | $200 | $259 |
| 75% | $428 | $200 | $228 |
| 80% | $402 | $200 | $202 |
| 85% | $378 | $200 | $178 |
| 90% | $357 | $200 | $157 |
| 95% | $338 | $200 | $138 |
| Electric Resistance | |||
| 100% | $1000 | $200 | $800 |
Based on an electric resistance heated pool, which costs $1,000 per year at an electric cost of $.085/kwh, and using a natural gas cost 0f $.80/therm. A seasonal average COP of 5.0 was used to determine heat pump savings.
