Final answer:
The coverage area of one gallon of thermo gel varies and depends on factors such as thickness and surface type.
Step-by-step explanation:
The question asks how many square feet a one gallon container of thermo gel will cover.
Unfortunately, without more information or context, it is not possible to accurately determine the number of square feet covered by one gallon of thermo gel. The coverage area will depend on factors such as the thickness at which the gel is applied and the type of surface it is being applied to.
It would be helpful to consult the product packaging or contact the manufacturer for specific information on coverage area.