Beyond Nice hot tub spa covers. If the time has come for replacing your hot tub cover, keep in mind your primary feature considerations for your needs. If your primary goal is to conserve energy and keep your heating bill low, a very important element is the R-value of the cover.
R-value is technically defined as the “thermal resistance value” of any type of insulation. Simply put, it is a measure of the resistance to heat flow when dry. The Pink Panther insulation in many attics has it’s own R-value, as does the expanded polystyrene (EPS) used in the core of spa covers.
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