Bonnet

(redirected from Chimney cap)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

Bon·net

(bō-nā'),
Amédée, French surgeon, 1802-1858. See: Bonnet capsule.

Bon·net

(bō-nā'),
Charles B., Philosopher, physician, natural scientist, Swiss 1720-1793. See: Bonnet syndrome.
References in periodicals archive ?
Components like lid of pad disposal hole in toilet, metal door (metal shutter) to take out the burnt ashes, chimney to outlet the fume, and chimney cap were the most common incinerators' components that were lacking.
A chimney cap keeps water and critters out of your flue and extends flue life.
From the landscaping to the chimney cap to the paint, no detail escaped the attention of the homeowner, the architect, and ultimately, the builder.
Most boiler and incinerator chimneys do not look all that bad if you are standing on the roof, but when you examine the condition of the chimney cap and the brickwork right below it, the problem often takes on an entirely different dimension.
If the chimney is not used, or used occasionally as a fireplace, I suggest you have the chimney cap checked by an experienced mason and any deficiencies found corrected.
But extending your chimney is likely to be expensive, so your best bet is to install a chimney cap, a metal shield that prevents downward gusts from blowing in.
Evidently, rain penetrated the mortar joints, or more likely, the chimney cap or faulty flashing, and carried the dissolved salts deeply into the chimney all the way through to the hearth, where you found the efflorescence.
Gleason even had an explanation for the habit of woodpeckers to seemingly mistake metal chimneys and chimney caps for something more edible, especially early in the spring.
Engineering and Architecture: Many technical and engineering support services including the design of chimneys, smokestacks, breaching ducts, inner stay-bands and chimney caps. General structural analysis.
The company has its own metal shop in Colorado Springs, enabling it to fabricate custom products such as chimney caps, collector heads and roof flashing.