Chimney Cap Measuring
for custom chimney caps made easy.....
Let's climb that ladder
once..... measure "everything" twice.
||Always measure a flue side to side, never
corner to corner.
The flues may be square, rectangular or
round. Measure accordingly.
Provide the inner and outer flue
measurement to size other options such as top sealing dampers.
Measure the gap, if any, between the
flues. If the gap is wide enough single caps may be used
instead of double or multi flue caps.
If the flues are flush, recessed or it's
just a "hole"... measure it's opening in the crown.
Measure the height of the flue or highest flue in the group.
B & C.
Measure to the outer most point on each side of the overall chimney's
top. The chimney's cement "crown".
D E F & G.
Measure from the outer most flue in the group to
each edge of the chimney.
Also measure the overall span from outside to outside edge of the flues
in the group ( G to F).
Flue Liner --
Usually a high temperature clay (fireclay). A round, square or
rectangular sleeve lining the interior of masonry chimneys. This is the
pathway in which the "smoke" or flue gases pass through to exit into the
(Some chimney were constructed with no clay liner or metal pipe was used
as the flue pipe.)
**Always measure a flue side to side, never corner
Chimney Crown --
Also called a "wash"... is usually a cement topping around the flues and
tapered to the chimneys sides to shed water.
(Some crowns are tapered more than others and may create a more
difficult cap installation.)
different sizes!!! Which size do I choose?????
||Since these caps attach to
the crown we like to recommend a size where the
mesh of the cap is half way between the
flues and the
edge of the chimney.
Larger is better.
Try to keep the mesh at leased 3-4 inches
in from the edge as the flange adds 1 1/4" (all around) to the
"foot print" of the cap. Don't worry about the lid of the
chimney cap... it is not recommended that it overhangs the
Call 800 685 8263 ..... we will
always review the measurements and help size your chimney cap.