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
* Compiled from customer provided data and controlled tests.