Are you having incurable draft problems coming from your chimney? Look no further for a solution. The RSHT Chimney Fan for wood and other solid fuel burning fireplaces mounts outside the chimney, where it literally sucks the smoke out from the chimney flue.This chimney fan is designed to disperse the smoke sideways (horizontal) just like a standard chimney cap. It is particularly suitable for wood-fired (solid fuel) fireplaces and stoves, and can also be used in pizza ovens, BBQs, and stoves. It is available with 12"x12", 14"x14", 16"x16" and 19"x19" base options. Installation is quick and easy - and the fan's compact design is barely visible from the ground level. The Enervex fan can be recessed or hidden behind the chimney top enclosure. Need help to determine the right size? Visit the Enervex website to learn more. Shipping is FREE for all orders. (continguous US only).