DuraVent DDW Double-Wall Manuale - Pagina 4
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Double-Wall Stovepipe
Installation
The clearance between the stove connector and
any combustible material must not be less than
6 inches.
For most straight installations, only a telescopic
length will be required. The telescopic length
adjusts from 42" up to 66".
For installations with high ceilings, we
recommend that the maximum vertical length
(no elbows) of double wall black connector that
can be installed should be 20' .
Creosote
Smoke from a wood fire always contains some
unburned gases and a fog of unburned tarlike
liquids. When these materials condense they
form a dark brown or black deposit called
creosote. Creosote formation in a chimney
cannot be eliminated, but it can be minimized
by:
1. Keeping the temperature of the gases in the
chimney above 300ºF.
2. Making small hot fires rather than slow
burning, smoldering fires.
ELBOW OFFSET & RISE CHART
Diameter
Offset
"
6
Rise
Offset
"
7
Rise
Offset
"
8
Rise
4 Duravent | www.duravent.com
Length between elbows
"
"
None
6
12
"
"
"
2 1/4
5 1/4
9 1/2
"
"
11 3/4
14 1/4
18 1/2
"
"
3
6
10 1/4
"
"
12
15
19 1/4
"
"
3 1/4
6 1/4
10 1/2
"
"
13 1/2
16 1/2
20 3/4
Coal
Some coals contain large quantities of Sulphur (up to 7%). When
coal is burned, Sulphur and coal ashes are deposited in the chimney
flue. This deposit combines with moisture to form a highly corrosive
acid (Sulphuric Acid). In order to protect your chimney connector,
we recommend that you:
1. Burn only low Sulphur coals (less than 1% Sulphur).
2. Have your chimney cleaned within 48 hours of shutting down
your stove at the end of the heating season. Be certain that all the
soot is removed. Wipe the chimney flue using a strong solution of
baking soda and water. This can be done by wrapping a rag around
a chimney cleaning brush, dipping it in the baking soda-water
solution, then passing it through the chimney three or four times.
"
"
24
36
"
"
18
26 1/2
"
"
"
27
35 1/2
"
"
"
18 3/4
27 1/4
"
"
"
27 3/4
36 1/4
"
"
"
19
27 1/2
"
"
"
29 1/4
37 3/4
OFFSET