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## Main Question or Discussion Point

Hopefully someone can help me with finding the answer to the 2 related questions/problems below:

__QUESTION/PROBLEM__- how long will it take a 200 gallon tank of water to warm up to 70 degrees Fahrenheit, in a room with an ambient temperature = 80 degrees Fahrenheit with 50% relative humidity?

- how long will it take a 300 gallon tank of water to warm up to 70 degrees Fahrenheit, in a room with an ambient temperature = 80 degrees Fahrenheit with 50% relative humidity?

__VARIABLES__- Water Starting Temp = 45 degrees Fahrenheit

- Tank Material = HDPE (High-density polyethylene)

- Tank Wall Thickness = ~1/4 inch (0.25)

- Tank Lid = 1-inch rigid insulation panel; Insulation R-Value = R3.85

- Tank Location = indoors - no exposure to sun; very minimal exposure to light

- Ambient Room Temp = 80 degrees Fahrenheit

- Room Relative Humidity (RH) = 50%