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Damper Basics Cary NC

Five types of dampers can be installed in a masonry fireplace: blade, form, high dome (high form), universal (square form), and chimney-top in Cary.

Stonebridge Yards
(919) 267-5121
109 Parkcanyon Ln
Cary, NC
 
Vertical Walls
(919) 468-0313
104 Woodwinds Industrial Ct Ste D
Cary, NC
 
Residential Construction Services Inc
(919) 467-4335
118 E State Ave
Cary, NC
 
Bill Ibison Stone Company Llc
(919) 851-3835
2509 Piney Plains Rd
Cary, NC
 
Vandergriff Masonry
(919) 906-0741
11457 Claybank Place
Raleigh, NC
Services
Brick, Stone, Concrete, Repairs, Retaining Wall, Step, Patio, Walk, Fireplace, Column, Point up, Masonry Cleaning, Sealing, Chimney, Lattice, Fence, Stairs, Foundation, Veneer, Repair
Hours
Day time hours Monday - Friday

Byrd & Goff Construction Co
(919) 854-0800
202 Travis Park
Cary, NC
 
Carolina Stone Setting
(919) 467-4693
603 Page St
Cary, NC
 
Pinnacle Masonry Inc
(919) 469-4522
101 Brady Ct Ste A
Cary, NC
 
American Chimney Sweep Co A
(919) 467-5088
303 Trappers Run Dr
Cary, NC
 
Moore'S Masonry Contracting
(919) 361-3060
5505 Kemmont Dr
Durham, NC
 

Damper Basics

Provided By:

Source: Masonry Construction
Publication date: September 1, 1991

By Robin L. Daugherty

Abstract: In a masonry fireplace, the damper controls heat, and gas flow and forms a barrier to back draft in the firebox. When open, it allows gases and smoke to pass through from the fire chamber to the smoke chamber. When closed, a damper reduces heat loss and directs heat into the room, eliminates downdrafts, and keeps animals, wind, and rain out of the fireplace, home, and in some cases, the chimney. Five types of dampers can be installed in a masonry fireplace: blade, form, high dome (high form), universal (square form), and chimney-top.DAMPER OPTIONSThe cast-iron blade damper has a valve plate with a welded handle that extends into the firebox for opening and closing. The form damper generally is made of steel. It incorporates a blade damper inside a metal box form that serves as a throat between the firebox and flue, saving the labor and costs of building a complete smoke chamber. High-dome and universal dampers are good choices for multi-opening fireplaces because they cover more of the firebox and throat area.CHIMNEY-TOP DAMPERSChimney-top dampers fall into a separate class from conventional dampers. Like high-dome and universal dampers, they can be used with any type of fireplace, but protect it from the top rather than from inside the flue. Because of this, they also function as chimney caps when closed.PROPER INSTALLATIONWhen a damper is installed correctly, it should l...

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