The 6 inch DuraTech Rain Cap features stainless steel construction and is designed to twist-lock onto DuraTech Chimney. Removable screws provide for easy cleaning of the chimney and spark arrestor screen.

This is the premier chimney cap for solving common, wind-related draft problems. These problems often occur for homes that have hills, mountains, tall trees or buildings in the vicinity

How it works:When wind flows around the Vacu-Stack's unique design, wind speeds increase which creates a partial vacuum. This vacuum then pulls flue gases up and out of the chimney, thus preventing wind-induced downdraft and the resulting infiltration of smoke, odor, and flue gas into your home.

Also functions as a conventional chimney cap by protecting the chimney from rain, snow, debris, and animals

It is made of Austenitic Stainless Steel and is designed for round chimneys that are not air insulated (also called air- cooled)

This can also be installed on a sqare or rectangular chimney using a Masonry Adaptor

This model work with the following types of chimneys:

Single wall

Masonry

Solid pack insulated

Class A

B vent

Note: Optional stainless Spark Arrester is required in some states. 1" x 1" is standard; smaller 1/2" x 1/2" mesh is also available.

The HY-C Black Galvanized Chimney Cap is a good cap for cost conscience homeowners looking to protect their homes from weather and animal invasion. A 24 gauge lid tops off the 18 gauge 3/4" mesh screen which is 6 1/2" high. What makes these caps unique are the placement of the mounting bolts. Located in the corners, the mounting bolts are recessed in order to give themselves a level grip against the flue tile.
Comes with a three year warranty against rust, and a seven year warranty for materials and manufacturing.

Gelco Stainless Steel Single-Flue Chimney Caps are constructed with exceptional quality, which is why this brand gets our Top Pick. Made of 100% 304 stainless steel, a one piece base, a 24 gauge lid, 3/4" mesh screen that is 8" high, and a classic look are why these caps are the best.

Black steel. 24 gauge single piece galvanized steel hood. 18 gauge 3 4" expanded galvanized steel mesh. 14 gauge galvanized steel base for extra strength. Slotted hex head mounting screws. Attractive black powder coated paint finish. Outside mounting prov

For venting 3" or 4" bathroom exhaust fans. Includes 3" and 4" locking plastic flanges for 3" or 4" duct installation. Improved damper design for easier outbound airflow and no back draft from outside air. Black.

This is the premier chimney cap for solving common, wind-related draft problems. These problems often occur for homes that have hills, mountains, tall trees or buildings in the vicinity.
How it works: When wind flows around the Vacu-Stack's unique design, wind speeds increase which creates a partial vacuum. This vacuum then pulls flue gases up and out of the chimney, thus preventing wind-induced downdraft and the resulting infiltration of smoke, odor, and flue gas into your home.
This cap also functions as a conventional chimney cap by protecting the chimney from rain, snow, debris, and animals. It is made of Austenitic Stainless Steel and is designed for round chimneys that are not air insulated (also called air-cooled). The Vacu-Stack can also be installed on a square or rectangular chimney using the Masonry Adaptor.

This model work with the following types of chimneys:

Single wall

Masonry

Solid pack insulated

Class A

B vent

Note: Optional stainless Spark Arrester is required in some states. 1" x 1" is standard; smaller 1/2" x 1/2" mesh is also available.

TECHNICAL DOCUMENTS:
Vacu-Stack General Info
How it works
Installation Instructions
Sizing: The Vacu-Stack size corresponds to the chimney pipes dimension. Example: A chimney pipe with a 6" inner diameter requires a 6" Vacu-Stack

The 8"x12" and 12"x16" Oval Vacu-Stack are Cap/Adaptor combination units that fit rectangular flues. Oval Vacu-Stack Sizing Guide

Customers from all parts of the country have had great success with the Vacu-Stack. We have found that the Vacu-Stack will solve the majority of down draft issues when they are wind-related. Customers who purchase and install the Vacu-Stack for non-wind-related issues may see an improvement but not a complete resolution to their down draft problems. Please be aware that if you purchase and install the Vacu-Stack, it cannot be returned

The Original Plus Cap is a super unit that gives you all the energy-saving benefits of an original Lyemance chimney cap. The cast aluminum OPC has .75in aluminum mesh and is available in three sizes. Measures 13in x 13in. The Lyemance Damper Caps are made of 24 gauge, 304 stainless steel and have 0.75 inch mesh. Their screen height is 8 inches tall enough for the Lyemance Dampers to open completely. Specially designed for the Lyemance Dampers (sold separetely).