4/16/2023 0 Comments Whitecap chimney capsSome chimney caps help reduce heat loss in older homes that don’t have dampers built into the flues. A stretcher extends the height of the flue beyond these obstacles, helping to improve the upward airflow. However, some draft-increase caps use an electric fan instead of the wind to pull air from the hearth up through the chimney.įlue stretchers may be employed when structures blocking the airflow around the flue opening create a downdraft that causes smoke to go back into the home. This type of flue typically harnesses the wind moving across the roof to improve the flue’s updraft. Some flues require specialty chimney caps to help draw smoke up and out of the chimney or take the place of a damper (a small door inside a chimney that prevents warm or conditioned air from escaping the home when the fireplace is not in use).ĭraft-increasing chimney caps are designed to improve the upward draft of the flue, helping to eliminate potential backdrafts that can push smoke back into the home through the hearth. These sizable chimney caps mount to the crown of the chimney with fasteners or some type of adhesive. This style of chimney requires a multi-flue chimney cap that is large enough to cover the flues. Multi-Flue Chimney CapĪ multi-flue chimney houses multiple flues for homes with more than one fireplace. Square caps fit around the flue and attach with screws, while round caps have a flange that slides into the flue. This type of cap is typically square or round. Single-flue caps, per their name, are compatible with chimneys that service a single flue. Ahead, learn about the different types of chimney caps and how they work. Knowing the different types of chimney caps is key to choosing one that’s compatible with the home’s chimney. BEST TOP-MOUNT: VEVOR Chimney Cap, 304 Stainless Steel Chimney Cover. BEST SINGLE-WALL: Cone Top Chimney Cap with Screen.BEST TRIPLE-WALL: Simpson Duravent Triple-Wall Chimney Cap.
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