Night Time Temp Readings (w/out sun)
| Outside Temp | Heated Water Temp | *Approx. Inside Temp Without Dome Heater | *Approx. Inside Temp With Dome Heater |
| 20-25 °F | 84 | 39 °F | 61 °F |
| 26-30 °F | 84 | 43 °F | 63 °F |
| 31-35 °F | 84 | 46 °F | 65 °F |
| 36-40 °F | 84 | 50 °F | 67 °F |
| 41-45 °F | 84 | 55 °F | 68 °F |
| 46-50 °F | 84 | 60 °F | 70 °F |
| 51-55 °F | 84 | 63 °F | 71 °F |
| Polar Bears Only | Pretty Darn Cold | Bearable | Pleasurable |