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Dear Visitor,
There are two airflow environments related to chimney caps. External
airflow (wind) is accountable for creation low air pressure around a
chimney cap that translates to additional draft (for properly designed cap) in addition
to the flue draft to enhance performance of your flue. Internal
airflow (hot stove or fireplace
gases) should be directed out of the flue with minimal coefficient of
resistance while providing rain protection. All internal air
passages of our caps have been designed to provide the same or
larger cross-section comparing to the original flue so that our caps
will not serve as a bottleneck for your flue.
Some DOWNDRAFT PROBLEMS Reviewd
Rain Problems
& Vertical Wind Shift
Noisy
Flue & Pilot light
Wind Shadow
Downdraft
Cold Flue
To help you choosing the right chimney cap for your fireplace, we designed
SELECTION page. It is enhanced with pictures
and easy to follow instructions. The guide will bring you to a page,
where you can order the chimney cap you selected directly online. We
have a wide range of stock sizes of chimney caps and if you can not find
the right size online, you can have a custom sized chimney cap made.
People refer to this chimney cap by many different names - Wind
Directional Cap, Roman Helmet, Rooster Tail and other names but we
call it SkyRider. The top helmet of the cap can freely rotate around
its shaft. When wind blows, the fin aligns the hood against wind and
front skirt will divert all air streams over and sides of the cap
along with rain and snow solving wind related downdraft problems.
Also, when wind flows over the cap this way, it creates low air
pressure over the flue due to the speed difference of air inside and
outside of the flue. This effect helps the flue to draw air better.
The streamlined shape of the cap slices through air with very little
resistance and it can withstand very strong winds.
SkyRider (wind directional) cap
SR-6"
shown, $115.94 (stainless steel),
Many other stock sizes available
It’s all started with studying aerodynamics which is the motion of air
when it interacts with objects. Driving force behind deep
development of aerodynamics is its applications to airplanes but
aerodynamics laws and analysis is valid for any object moving through
fluid, or air in case with caps. There are similarities between
airplanes and chimney caps. Airplane moves through air while air
moves around chimney cap but this is the same thing really. In addition,
both airplane and chimney cap are made of thin sheet metal and some
techniques of physical reinforcement for aircraft might be applied
to chimney caps to withstand strong gusty wind.
( Stainless Flue Cap
FLC 13x13
shown $126.86,
Many other stock sizes available
)
Years of calculating, testing and rethinking gave us knowledge and
experience to develop the range of innovative chimney caps, designed
and built to solve most chimney problems. Our caps are not flashy or
eye itchy tending to overshadow appearance of a house but they
rather complementary to unique architecture of your house.
( Copper Rain Cap
RCcb
8x12.5 shown, $336.46.
Many other stock sizes available
)
DraftMaster cap is a die-hard fireplace lovers
favorite. Wind is one of very few things that is free in our country, so
why not to use it to increase flue performance.
This cap is the best thing that ever happened to your flue.
It provides top line performance, 100% rain protection, and a lifetime
warranty. This chimney cap can easy solve any wind related downdraft problems and
keep any moisture away from your chimney.
Creation of DraftMaster based on Bernoulli's law, where
pressure and velocity are inversely related. Consider we have wind near
our chimney. Accordingly to Bernoulli's law it will create lower air
pressure at chimney opening comparing to air pressure inside of the
chimney, where air flow relatively slower. It will force the air inside
of chimney to move toward that opening, creating updraft.
DraftMaster has two openings, one on bottom and another on the top, so it
will be twice more effective than just open chimney. Also it has
passages to deal with vertical wind. In addition, inside cone and
geometry of that cap (mathematically calculated) provide laminar (not
turbulent) air flow for minimum resistance from inside of your chimney
to outside. Maximum performance of DraftMaster achieved with careful
calculations and many hours of testing. All of those concepts will
provide maximum updraft by DraftMaster cap, seen nowhere else. This chimney cap is ideal for those situations where the
homeowner demands the very best.
( Stainless DraftMaster Cap
DM-8"
shown, $178.93,
Many other stock sizes available
)
AirManager is a smaller brother of DraftMaster. AirManager reduces
updrafts while windy conditions (no other chimney cap on the market is able
to do this) that translates to saving energy ($$$). Also, this
chimney cap is ~1.5 times smaller then "DraftMaster Cap" (comparing
volumes). AirManager caps is highly recommended for windy areas, however
they are not recommended for heavy smoking chimneys, since they will
exhaust through the sides of the cap wall, and it will cause
discoloration of the walls. This chimney cap is ideal for gas
fireplaces, gas water heaters and other gas appliances. Best
suited for windy areas.
(Stainless AirManager
AM 8"x10"
shown, $194.06,
Many other stock sizes available
)
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All Chimney Caps shipped with a free 1"
mesh spark arrestor (screen).
Chimney Cap Design business registry.
Our chimney caps will last the life of your home
and beyond. They are available in several styles and size ranges.
All of our chimney caps are fully
assembled and easy to install. No drilling or gluing, all you need is
just one 7/16 wrench to tighten bolts. All of our chimney caps constructed of heavy-duty stainless
steel or solid copper and carry a lifetime warranty.
The stainless
steel metal has a brushed look, while the copper will darken
naturally which helps to blend in with the house and surroundings.
Stainless Steel caps will not rust for a lifetime. We can easily
provide you with a lifetime warranty. Metals that are available in
sheet stock are T3O4 (24gauge) stainless and 2Ooz solid copper.
Chimney Cap Design have a lifetime warranty on our products that
covers all manufacturing defects.
When I unpacked it, I was very
impressed by the sturdy character of the product. On Saturday I went
onto the roof to assemble it and it took me not even 5 minutes to
put it on and secure it with the very simple system that comes with
the Chimney Cap. Everything fitted like it was made for
exactly the pipe that I have in my Chimney. An absolutely terrific
product !!!!! Extremely well put together, solid and really easy to
put it onto the chimney.
Often enough people complain if
things go wrong, but I think it is also important to let people
know, if they do something right, and you guys definitely do.
Thank
you for the copper chimney cap. Not only it is beautiful, but as an
architectural engineer I can say it is extremely well made. The
quality far exceeds that of the other similar products on the market,
at a very reasonable price.
Much appreciative, John...
The DraftMaster arrived today. It's excellent, and fits
nicely and neatly. I install it tomorrow. Thank you for the
excellent service and terrific chimney cap. Best regards, Lee...
Dear Chimney Cap Design, ;-)
Nice customer service. I like that. Thank you.
This chimney cap is great from the
ground up. Excellent material, solid design, with excellent
results after easy installation. The results were exactly what we
were trying to achieve.
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