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2. Cowl (chimney) - Wikipedia

   en.wikipedia.org/wiki/Cowl_(chimney)

   Cowls often also act as a rain guard to keep rain from going down the chimney. A metal wire mesh is sometimes added as a spark arrestor. Wooden cowls were used on oasts to prevent the ingress of rain into kilns, and create a flow of air through the kiln. An H-style cap (cowl) is a chimney top constructed from chimney pipes shaped like the letter H.

3. Chimney - Wikipedia

   en.wikipedia.org/wiki/Chimney

   A chimney cowl or wind directional cap is a helmet-shaped chimney cap that rotates to align with the wind and prevent a downdraft of smoke and wind down the chimney. An H-style cap is a chimney top constructed from chimney pipes shaped like the letter H. It is an age-old method of regulating draft in situations where prevailing winds or ...

4. Flashing (weatherproofing) - Wikipedia

   en.wikipedia.org/wiki/Flashing_(weatherproofing)

   Weatherproofing seam between a stone chimney and a tile roof on a building in Jersey, Channel Islands. The lead flashing is seen as light gray sheets at the base of the chimney. Flashing is thin pieces of impervious material installed to prevent the passage of water into a structure from a joint or as part of a weather resistant barrier system.

5. Fireplace - Wikipedia

   en.wikipedia.org/wiki/Fireplace

   A cap, hood, or shroud serves to keep rainwater out of the exterior of the chimney; rain in the chimney is a much greater problem in chimneys lined with impervious flue tiles or metal liners than with the traditional masonry chimney, which soaks up all but the most violent rain. Some chimneys have a spark arrestor incorporated into the crown or ...

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Flue - Wikipedia

   en.wikipedia.org/wiki/Flue

   A seven-flue chimney in a four-storey Georgian house in London, showing alternative methods of sweeping. A flue is a duct, pipe, or opening in a chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors. Historically the term flue meant the chimney itself. [1]