If you own a newer water heater, you don’t need an insulation blanket. Today’s water heaters are insulated well enough to not need extra insulation.
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The Frost King SP90A Water Heater Insulation Blanket is R19 fiberglass and foil on both sides for supreme insulation and fits most gas, oil or electric water heaters. Includes foil tape for easy installation. Compatible with electric, oil, or gas water heaters and designed to insulate the water heater for energy-efficient use. Foil and fiberglass enhance insulation to an R19-equivalent level without adding excess bulk to your heater. Fits up to a 60-gal.
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