Gently warms and circulates the air to prevent condensation and mold. Ideal for boats, RVs, cabins and basements. Draws only 120 watts, with a built in shut off switch to prevent overheating. No moving parts and designed to run continuously for extended periods. Measures 13.5"L x 10.5"W x 4"H. Made in the USA with a 2 Year Warranty.