![Enervex Fan Logo, Enervex fans, Exhausto, exodraft](images/enervex_logo.jpg)
World's Finest Mechanical Draft Systems |
Enervex Chimney Fans
Model RS Chimney Fan Selection
Wood and Gas Fired Fireplaces and Stoves |
QUICK SIZING.... STEP 1
Determine the type of opening, measure and calculate.....
![one sided fireplace](images/Single-Sided-sm_small.gif) |
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![two sided fireplace](images/Double-sided-sm_small.gif) |
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![corner fireplace](images/Corner-sm_small.gif) |
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![three sided fireplace](images/Three-Sided-sm_small.gif) |
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![free standing fireplace](images/Island-Sq-sm_small.gif) |
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![free-standing round fireplace](images/Island-Round-sm_small.gif) |
One-sided |
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Two-sided (See-through) |
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Corner |
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Three-sided |
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Free-standing |
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Free-standing Round |
A x B |
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1.5 x A x B |
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A x B |
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( A + B ) x C |
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1.5 x A x B |
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1.185 x A2 |
QUICK SIZING.... STEP 2 |
Determine the type of flue and measure the INSIDE measurement... use the
chart below to convert square and rectangular to round. |
CONVERSION
OF Rectangular /
Square to Round Flues
![Chimney Caps - Covers & Downdraft Solutions](images/select2.gif) |
Measure the INSIDE ( side to side ) measurements of the clay liner.
![Chimney Caps - Covers & Downdraft Solutions](images/select1.gif)
Ex... The INSIDE measurement of 6 x 10"
on a clay liner is equivalent to
10 (dim.
A) - 6 (dim.
B) = 8 (8"
Round)
NOTE: Clay liners are "called"
by their OUTSIDE measurements, the INSIDE measurements may vary
depending on the manufacturer and location.
EX. A 13x13 clay liner may
only have an INSIDE measurement of 10" x 10" |
Use of the following fan
selection tables requires that you understand how to calculate or determine the
area of opening a fireplace opening and a flue system.
Note: The
RED background
indicates that the fan will most likely create some air-flow noise due to a high
air velocity in the chimney.
The BLUE
background indicates the fan base will not cover the chimney opening and a
special adapter must be used.
|
Fireplaces (wood-fired) |
|
Fireplace Opening in square inches |
Flue
Size |
Max. 400 |
Max. 600 |
Max.
900 |
Max.
1200 |
Max.
1500 |
Max.
2000 |
Max.
2500 |
Max.
3300 |
5 |
RS 12 |
RS 16 |
* |
* |
* |
* |
* |
* |
6 |
RS 9 |
RS 12 |
RS 16 |
* |
* |
* |
* |
* |
7 |
RS 9 |
RS 9 |
RS 14 |
RS 16 |
* |
* |
* |
* |
8 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 16 |
* |
* |
* |
9 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 16 |
RS 16 |
* |
* |
10 |
RS 9 |
RS 9 |
RS 12 |
RS 12 |
RS 14 |
RS 16 |
* |
* |
12 |
RS 9 |
RS 9 |
RS 12 |
RS 12 |
RS 14 |
RS 14 |
RS 16 |
* |
14 |
RS 9 |
RS 9 |
RS 12 |
RS 12 |
RS 12 |
RS 12 |
RS 14 |
RS 16 |
16 |
RS 9 |
RS 9 |
RS 12 |
RS 12 |
RS 12 |
RS 12 |
RS 14 |
RS 16 |
18 |
RS 9 |
RS 9 |
RS 12 |
RS 12 |
RS 12 |
RS 12 |
RS 14 |
RS 16 |
20 |
RS 9 |
RS 9 |
RS 12 |
RS 12 |
RS 12 |
RS 12 |
RS 14 |
RS 16 |
22 |
RS 9 |
RS 9 |
RS 12 |
RS 12 |
RS 12 |
RS 12 |
RS 14 |
RS 16 |
24 |
RS 9 |
RS 9 |
RS 12 |
RS 12 |
RS 12 |
RS 12 |
RS 14 |
RS 16 |
Check that there are no more than 2x90°
elbows and no more than 30’ of height. If there are more than 2x90° elbows, use
a bigger fan.
![Chimney Caps - Covers & Downdraft Solutions](images/fireplac1.gif) |
The "opening in square
inches" refers to the fireplace or appliances over-all face opening.
Example : In a small wood burning fireplace, if the hearth opening is
18" x 24" with an 8" round ( INSIDE MEASUREMENT ) clay liner in a brick and mortar chimney we
would...
Multiply the length and width, in this case 18" x 24" = 432 square
inches. Being less than 600, on the wood burning chart above, follow the column to the 8"
flue size. Highlighted in
orange, the chart shows an RS 9 to be the proper
size chimney fan for this application. |
Note: The
RED background
indicates that the fan will most likely create some air-flow noise due to a high
air velocity in the chimney.
The BLUE
background indicates the fan base will not cover the chimney opening and a
special adapter must be used.
|
Fireplaces (gas-fired) |
|
Fireplace Opening in square inches |
Flue
Size |
Max. 400 |
Max. 600 |
Max. 1000 |
Max. 2000 |
Max. 2500 |
Max. 3000 |
Max. 3500 |
Max. 5000 |
5 |
RS 9 |
RS 12 |
* |
* |
* |
* |
* |
* |
6 |
RS 9 |
RS 9 |
RS 12 |
* |
* |
* |
* |
* |
7 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 14 |
* |
* |
* |
8 |
RS 9 |
RS 9 |
RS 9 |
RS 12 |
RS 16 |
* |
* |
* |
9 |
RS 9 |
RS 9 |
RS 9 |
RS 12 |
RS 12 |
* |
* |
* |
10 |
RS 9 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 16 |
RS 16 |
* |
12 |
RS 9 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 14 |
RS 16 |
* |
14 |
RS 9 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 14 |
RS 14 |
* |
16 |
RS 9 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 14 |
RS 14 |
* |
18 |
RS 9 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 14 |
RS 14 |
RS 16 |
20 |
RS 9 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 14 |
RS 14 |
RS 16 |
22 |
RS 9 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 14 |
RS 14 |
RS 16 |
24 |
RS 9 |
RS 9 |
RS 9 |
RS 12 |
RS 14 |
RS 14 |
RS 14 |
RS 16 |
Check that there are no more than 2x90°
elbows and no more than 30’ of height. If there are more than 2x90° elbows, use
a bigger fan.
Gas fireplaces will need additional controls...
PDS (Proven Draft Switch) Safety control that senses
a draft. A pressure sensor that ties into the log set or appliance
controls and would shut the gas off if the draft became negative.
ADC 100 A pre/post purge control that would extend the
the fan cycle before and after gas is present for a fireplace or appliance.
MFD Mechanical Fireplace Damper. (GAS ONLY) Prevents
excess heat from escaping through the chimney when the fireplace is not in use.
Wood stoves, coal stoves
and fireplace inserts
|
Stoves |
Fireplace Inserts |
|
Door Opening in square inches A x B |
Flue
Size |
Max. 300 |
OVER 300 |
6 |
RS 9 |
RS 12 |
7 |
RS 9 |
RS 12 |
8 |
RS 9 |
RS 12 |
9 |
RS 9 |
RS 12 |
10 |
RS 9 |
RS 12 |
|
![Chimney Caps - Covers & Downdraft Solutions](images/ventma86.jpg)
Check that there are no more than 2x90°
elbows and no more than 30’ of height.
If there is more than 2x90° elbows, use a bigger fan. |
|
Fan Specifications
![Enervex Fan Specs, RS Fan Specifications, Exhausto Fan Specs, exodraft fan specs](images/chimne1.gif) |
![RS Chimney Fan sketch, enervex schematic, exhausto schematic, exhausto RS sketch](images/chimne2.gif)
![RS Chimney Fan sketch, enervex schematic, exhausto schematic, exhausto RS sketch](images/chimne7.gif) |
1 Junction Box
2 Conduit/cord
3 Motor
4 Motor Housing
5 Cooling Plates
6 Bird Screen
7
Base Plate
8
Locking Nut
9
Inlet
10
Axial Vane
11
Hinges
12
Capacitor
( inside J-box )
![](images/tools2.gif)
Capacitor
Wiring Diagram |
Call 1 800 685 8263 or
e-mail us with your specs.
We will be happy to
help you choose the correct size chimney fan for your application.
Click to learn more about
Exhausto Chimney Fans
visit the
Chimney
Fan Source
@
www.chimneyfansource.com
|