Thermador VCIN54GWS Installation Instructions - Page 11

Equivalent Duct Lengths for Commonly, Used Transitions

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Equivalent Duct Lengths for Commonly Used Transitions Duct Piece Smooth, straight 3¼" x 10", straight Size (in) 6 8 10 Equivale nt Length (ft) 1.2 0.7 0.6 N/A 1 Duct Piece Round to 3¼" x 10" 90° elbow , 3¼" x 10" to round 90° elbow , Size (in) Equivale nt Length (ft) 6 10 6 10 3¼" x 14", straight N/A 6 90° elbow , round 8 10 6 45° elbow , round 8 10 3¼" x 10", 90° elbow , round N/A 3¼" x 10", N/A 45° elbow , round 3¼" x 10", Flat elbow N/A 6 Round to 3¼" x 10" 8 6 3¼" x 10" to round 8 0.7 3¼" x 10" Center reverse elbow , left N/A 15 12 6 3¼" x 10", Center reverse elbow , right N/A 25 5 5 3¼" x 10", Left reverse elbow N/A 15 3 2 3¼" x 10", Right N/A 25 reverse elbow 5 6 2 Round wall cap 8 2 15 10 2 6 2 20 Round roof cap 8 2 10 2 1 2' long, 3¼" x 10" flex N/A 20 10 5 3¼" x 10", Roof jack and shutter N/A 2 2 NOTE: These commonly used installation parts can be purchased at a local hardware store. Thermador does not manufacture all these parts. Page. 11

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Page. 11
Equivalent Duct Lengths for Commonly
Used Transitions
Size (in)
E
q
uivalent
Len
g
th (ft)
Size (in)
E
q
uivalent
Len
g
th (ft)
6
1.2
6
10
8
0.7
10
0.6
3¼
"
x 10
"
, strai
g
ht
N/A
1
3¼
"
x 10
"
,
Center
reverse el
b
ow , ri
g
ht
N/A
25
3¼
"
x 14
"
, strai
g
ht
N/A
0.7
3¼
"
x 10
"
,
Left
reverse el
b
ow
N/A
15
3¼
"
x 10
"
,
Ri
g
ht
reverse el
b
ow
N/A
25
6
12
6
2
8
6
8
2
10
10
2
6
5
6
2
2
5
8
3
8
2
2
2
10
10
3¼
"
x 10
"
,
90° el
b
ow , roun
d
N/A
5
2
’
lon
g
, 3¼
"
x 10
"
flex
N/A
20
3¼
"
x 10
"
,
45° el
b
ow , roun
d
N/A
15
3¼
"
x 10
"
, Flat el
b
ow
N/A
20
6
1
8
10
8
2
3¼
"
x 10
"
,
Roof jack
an
d
shutter
N/A
6
5
6
10
NOTE: These commonly use
d
installation parts can
b
e purchase
d
at a
local har
d
ware store. Therma
d
or
d
oes not manufacture all these parts.
Roun
d
wall cap
Roun
d
roof cap
3¼
"
x 10
"
to roun
d
90° el
b
ow ,
Duct Piece
3¼
"
x 10
"
Center
reverse el
b
ow , left
15
N/A
Roun
d
to 3¼
"
x 10
"
3¼
"
x 10
"
to roun
d
Roun
d
to 3¼
"
x 10
"
90° el
b
ow ,
Duct Piece
Smooth, strai
g
ht
90° el
b
ow , roun
d
45° el
b
ow , roun
d