GarveeHome Heavy-Duty 18x18 Inch Chimney Cap - Galvanized Steel Fireplace Cover with Weatherproof Hood, Easy Bolt-On Install for Wood Stove & Single Flue

Heavy-Duty Galvanized Steel Chimney Cap – Superior Protection for Industrial & Residential FluesUpgrade your chimney system with our standard galvanized steel chimney cap, expertly engineered for bottom-mount installation on clay and masonry flues. This necessary chimney accessory offers a watertight seal that prevents rain, snow, and debris from entering your chimney, safeguarding your fireplace, wood stove, or industrial exhaust system year-round.Wide Range of Sizes: Available in 11 accurate sizes (from 5x9 in to 18x18 in), ensuring a perfect fit for rectangular and square flue openings.Industrial-Grade Construction: Crafted from durable 24-gauge galvanized steel with a robust 14-gauge base and scalloped corners, this cap delivers exceptional rust and corrosion resistance—outperforming painted alternatives even in harsh weather conditions.Enhanced Safety: The integrated 1.5 cm fine mesh screen functions as a reliable spark arrestor, blocking embers while keeping out birds, animals, and leaves. This helps maintain best airflow, prevents blockages, and minimizes fire risks.Optimized Ventilation: The square base and raised hood design allow maximum free air space for efficient smoke exhaust and improved draft performance.Easy, Secure Installation: Pre-drilled holes and four adjustable slotted hex-head bolts enable fast, tool-free setup by a single person—no mortar or adhesives required.Ideal for both home and industrial use, this weather-resistant chimney cap protects your flue and prolongs chimney life. Choose our galvanized steel cap for reliable year-round defense, easy installation, and lasting confidence.

• HEAVY-DUTY GALVANIZED STEEL CONSTRUCTION: Built with durable24 gauge galvanized steel, reinforced seams, and rust-resistant coating, this chimney cap withstands extreme temperatures, heavy winds, snow loads, and UV exposure without warping or corrosion. Its commercial-grade durability ensures long-lasting performance in harsh outdoor conditions.
• MULTI-SIZE FIT FOR CLAY & MASONRY FLUES: Available in 10+ precise sizes ranging from 5"x9" to 18"x18", this cap is designed to fit square, rectangular, and round flue tiles. The bolt-on frame accommodates flue heights from 4" to 12" and overlaps edges by 0.75"-1.5" for a secure, weather-tight seal on clay, masonry, or metal chimneys.
• ALL-WEATHER PROTECTION & SPARK ARRESTOR: Keep your chimney safe from rain, snow, debris, birds, and rodents year-round. Our heavy-duty galvanized steel cap features a fine 1.5 cm x 1.5 cm mesh that acts as a certified spark arrestor—preventing embers from escaping and reducing fire risks. It also allows optimal airflow for cleaner, more efficient burning in wood-burning fireplaces and outdoor chimneys.
• OPTIMIZED DRAFT & EFFICIENT VENTING: The elevated hood and bottom-mount design prevent downdrafts, improve airflow, and keep debris clear of the flue opening. This enhances combustion efficiency, reduces indoor smoke return, and ensures consistent venting for fireplaces, wood stoves, and heating systems.
• TOOL-FREE BOLT-ON INSTALLATION: Install quickly and securely with no welding or special tools required. Pre-drilled holes, adjustable metal bolts, and smooth safety edges allow for easy DIY setup—even in tight rooftop spaces. Simply position the cap, tighten the bolts, and enjoy a rock-solid, rattle-free connection.