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Round Base Chimney Caps

A Solution for Increased Efficiency and Protection

Round base chimney caps improve the functionality and efficiency of chimneys. At FAMCO, we manufacture four distinct round base chimney caps—the Wind Directional Cap, Cone Top Cap, Universal Cap, and Vacuum Cap—each tailored to meet specific needs. Each chimney cap is engineered to enhance airflow, prevent debris and moisture from entering the chimney, and contribute to better overall draft performance.

FAMCO round base chimney caps vents are available in various materials like galvanized steel, stainless steel, copper, and aluminum. We offer multiple styles to suit both residential and commercial ventilation needs.

  • FAMCO Cone Top Chimney Cap with Screen – GalvanizedFAMCO Cone Top Chimney Cap with Screen – Galvanized
    Chimney Caps

    Cone Top Chimney Cap with Screen – Galvanized

    Rated 4.95 out of 5
    $39.95$141.95 Select options This product has multiple variants. The options may be chosen on the product page
  • The FAMCO CT cone top chimney cap AKA replacement rain cap side viewThe FAMCO CT cone top chimney cap AKA replacement rain cap side view
    Chimney Caps

    Cone Top Chimney Cap – Galvanized

    Rated 4.81 out of 5
    $34.95$136.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Diagonal side-view of FAMCO wind directional chimney cap in galvanized steel.Diagonal side-view of FAMCO wind directional chimney cap in galvanized steel.
    Chimney Caps

    Wind Directional Chimney Cap – Galvanized

    Rated 4.87 out of 5
    $102.95$276.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Side view of FAMCO Stainless Steel Cone Top Chimney Cap.Side view of FAMCO Stainless Steel Cone Top Chimney Cap.
    Chimney Caps

    Cone Top Chimney Cap with Screen – Stainless Steel

    Rated 4.83 out of 5
    $51.95$141.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Side view of FAMCO Round Base Chimney Vacuum Cap in galvanized steel.Side view of FAMCO Round Base Chimney Vacuum Cap in galvanized steel.
    Chimney Caps

    Round Base Chimney Vacuum Cap – Galvanized

    Rated 4.81 out of 5
    $39.95$226.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Side view of FAMCO's wind directional chimney cap.Side view of FAMCO's wind directional chimney cap.
    Chimney Caps

    Wind Directional Chimney Cap – Stainless Steel

    Rated 5.00 out of 5
    $170.95$283.95 Select options This product has multiple variants. The options may be chosen on the product page
  • FAMCO Cone Top Chimney Cap with Screen - CopperFAMCO Cone Top Chimney Cap with Screen - Copper
    Chimney Caps

    Cone Top Chimney Cap with Screen – Copper

    Rated 4.73 out of 5
    $104.95$184.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Side view of FAMCO Stainless Steel Cone Top Chimney Cap.Side view of FAMCO Stainless Steel Cone Top Chimney Cap.
    Chimney Caps

    Cone Top Chimney Cap – Stainless Steel

    Rated 4.78 out of 5
    $46.95$136.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Full side view of FAMCO round base chimney vacuum cap in stainless steel.Full side view of FAMCO round base chimney vacuum cap in stainless steel.
    Chimney Caps

    Round Base Chimney Vacuum Cap – Stainless Steel

    Rated 4.91 out of 5
    $68.95$170.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Full side view of FAMCO round base chimney vacuum cap in aluminum.Full side view of FAMCO round base chimney vacuum cap in aluminum.
    Fireplace Chimney Caps

    Round Base Chimney Vacuum Cap – Aluminum

    Rated 5.00 out of 5
    $39.95$102.95 Select options This product has multiple variants. The options may be chosen on the product page
  • The FAMCO CTCU cone top chimney capThe FAMCO CTCU cone top chimney cap
    Chimney Caps

    Cone Top Chimney Cap – Copper

    Rated 4.71 out of 5
    $101.95$178.95 Select options This product has multiple variants. The options may be chosen on the product page
  • A FAMCO UCSS universal chimney cap, steelA FAMCO UCSS universal chimney cap, steel
    Chimney Caps

    Universal Chimney Cap – Stainless Steel

    Rated 4.86 out of 5
    $125.95$147.95 Select options This product has multiple variants. The options may be chosen on the product page
  • The FAMCO UC universal chimney cap 28 gauge galvanized steelThe FAMCO UC universal chimney cap 28 gauge galvanized steel
    Fireplace Chimney Caps

    Universal Chimney Cap – Galvanized

    Rated 5.00 out of 5
    $85.95$113.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Inside view of FAMCO round base chimney vacuum cap in copper.Inside view of FAMCO round base chimney vacuum cap in copper.
    Fireplace Chimney Caps

    Round Base Chimney Vacuum Cap – Copper

    Rated 5.00 out of 5
    $102.95$215.95 Select options This product has multiple variants. The options may be chosen on the product page
  • The FAMCO UCCU universal chimney cap, copperThe FAMCO UCCU universal chimney cap, copper
    Chimney Caps

    Universal Chimney Cap – Copper

    Rated 5.00 out of 5
    $181.95$226.95 Select options This product has multiple variants. The options may be chosen on the product page

Technical Information

FAMCO Round Base Caps Benefits

Energy Efficiency
Some round base chimney caps are designed to enhance updrafts and prevent downdrafts, contributing to better fuel efficiency and safer exhaust venting.
Moisture Control
Helps prevent rain, snow, and debris entering the chimney, which could otherwise lead to damage and clogging.
Improved Air Quality
Helps prevent downdrafts and creates a consistent flow of exhaust gases.
Residential and Commercial Uses

Residential Use:

Essential for homes in areas with strong winds, helping to regulate airflow and prevent backdrafts.

Commercial Use:

The Vacuum Cap is a trusted choice for commercial settings, particularly for gas, oil, coal, and wood-burning systems, where enhancing the draft is a top priority.

Product Highlights

Round Base Chimney Vacuum Cap:

Enhances updraft and prevents downdrafts by forcing wind to alter its direction over one of four gores, creating a partial vacuum. Designed for single-wall pipe installation, it features a draw bolt collar for a secure fit.

Cone Top Chimney Cap with Screen:

Designed as an all-weather, seamless cap, it prevents rain and snow from entering the chimney pipe. It mounts over a single-wall pipe and features a fixed base band with a built-in ¼-inch screen. 

Cone Top Chimney Cap with Screen:

This seamless cap prevents rain and snow from entering the chimney pipe. It is not rated as a spark arrestor, so check local building codes before purchasing.

Round Base Chimney Cap Installation Tips

Proper Placement:

Install chimney caps so that the chimney flue remains protected from debris and adverse weather conditions.

Cap Selection:

Choose caps based on climate and specific ventilation needs. For masonry chimneys, the chimney cap may require additional adapters to transition from the flue to the cap.

Professional Installation:

While some caps may be installed by a homeowner, professional installation is recommended for complex systems or areas with challenging access.

Frequently Asked Questions

A round base chimney cap protects the chimney from debris, rain, snow, and animals, while providing proper ventilation for efficient airflow and preventing downdrafts.

Make sure the chimney cap matches the size and material of the chimney, and consider additional features like bird screens, cap design, or weather resistance based on the property’s specific needs.

FAMCO offers a one-year warranty for round base chimney caps, which includes coverage for manufacturing defects. If you notice any issues or defects with your chimney cap, contact our customer support team for assistance.

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