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Standard Ground Freight FREE - On orders over $25 |
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- Orders placed on weekends or holidays will be processed the next business day.
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In-stock items ship today if ordered in:
HR : MIN : SEC
Same day shipping on thousands of in-stock items
DETAILS
Shipping Cutoff Times
| Shipping Type | Order By |
|---|---|
|
Standard Ground Small Parcel FREE - On orders over $25 View Transit Map |
7:00 PM CST |
|
Next Day Air (Calculated at checkout) |
3:00 PM CST |
|
Standard Ground Freight FREE - On orders over $25 |
1:00 PM CST |
- Shipping cutoff times apply to in-stock items. Please note item lead-times when placing your order.
- Orders placed on weekends or holidays will be processed the next business day.
Questions? Give us a call at 1-800-355-5354
Product Cross Reference
Enter a competitor brand manufacturer and model series to help you cross reference to the right Greenheck product. Once possible Greenheck replacement product(s) appear in the grid below, product filtering to insure cross reference for correct base/panel size, voltage and phase and other important considerations may be completed using navigation to the left of the products.
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Performance Filter
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Calculate Air Exchange (CFM)
Use the calculator to determine the Air Exchange (CFM) required to adequately ventilate an area.Enter information into the fields below to calculate the required airflow per fan.
To calculate the CFM required to adequately ventilate an area, we divide the room volume by the appropriate “Minutes per Change” value.
[CFM] = [Room Volume] / [Min./Chg.]
Airflow (CFM) per Fan
*
Starred items represent required fields.
Calculate Static Pressure (SP)
Use the calculator to determine the amount of static pressure the fan must overcome.The pressure generated by fans in ductwork is typically very small. An accurate measurement of static presure is critical to proper fan selection however. Static pressure in fan systems is typically less than 2" SP, or 0.072 Psi.
The amount of static pressure that the fan must overcome depends on the air velocity in the ductwork, the number of duct turns (and other resistive elements), and the duct length. For properly designed systems with sufficient make-up air, the guidelines in the table below can be used for estimating static pressure.
Static pressure
* Starred items represent required fields.
Static Pressure Guidelines
Non-Ducted 0.05" to 0.20"
Ducted 0.20" to 0.40" per 100 feet of duct (assuming duct air velocity falls within 1,000 to 1,800 feet per minute)
Fittings 0.08" per fitting (elbow, register, grill, damper, louver, duct turn, etc.)
Kitchen Hood Exhaust 0.625" to 1.50"
Important: Static pressure requirements are significantly affected by the amount of make-up air supplied to an area. Insufficient make-up air will increase static pressure and reduce the amount of air that will be exhausted. Remember, for each cubic foot of air exhausted, one cubic foot of air must be supplied.
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| SKU | DRIVE TYPE | HP | VOLTAGE | MOTOR PHASE | CFM RANGE | FRPM RANGE | PRICE | LEAD TIME | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Model:
GPF
Model / Size:
GPF-17
|
- | - | - | - | - | - | $335.00 |
In stock
1 on Hand
|
Add to Compare List |
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|
Model:
SQ
Model / Size:
SQ-95
|
Direct Drive | 1/8 | 115 | 1 | 275-920 | 1050-1550 | $1,240.00 |
In stock
5 on Hand
|
Add to Compare List |
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|
Model:
SQ
Model / Size:
SQ-90
|
Direct Drive | 1/10 | 115 | 1 | 188-738 | 1050-1550 | $1,118.00 |
In stock
6 on Hand
|
Add to Compare List |
|
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|
Model:
GPF
Model / Size:
GPF-34
|
- | - | - | - | - | - | $716.00 |
In stock
1 on Hand
|
Add to Compare List |
|
|
Model:
GPI
Model / Size:
GPI-22
|
- | - | - | - | - | - | $326.00 |
In stock
1 on Hand
|
Add to Compare List |
|
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|
Model:
GPI
Model / Size:
GPI-26
|
- | - | - | - | - | - | $265.00 |
In stock
29 on Hand
|
Add to Compare List |
|
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|
Model:
GPI
Model / Size:
GPI-30
|
- | - | - | - | - | - | $295.00 |
In stock
30 on Hand
|
Add to Compare List |
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Model:
GPI
Model / Size:
GPI-30
|
- | - | - | - | - | - | $383.00 |
In stock
1 on Hand
|
Add to Compare List |
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|
Model:
GPF
Model / Size:
GPF-40
|
- | - | - | - | - | - | $858.00 |
In stock
1 on Hand
|
Add to Compare List |
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|
Model:
GPI
Model / Size:
GPI-22
|
- | - | - | - | - | - | $218.00 |
In stock
111 on Hand
|
Add to Compare List |
|
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|
Model:
GPI
Model / Size:
GPI-40
|
- | - | - | - | - | - | $402.00 |
In stock
3 on Hand
|
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|
Model:
GPI
Model / Size:
GPI-15
|
- | - | - | - | - | - | $157.00 |
In stock
21 on Hand
|
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|
|
Belt Drive | - | - | - | 20547-37220 | 494-582 | $4,648.70 |
In stock
7 on Hand
|
Add to Compare List |
||
|
Belt Drive | - | - | - | 22206-36242 | 469-612 | $4,790.80 |
In stock
162 on Hand
|
Add to Compare List |
||
|
Model:
SAF
Model / Size:
SAF-118
|
Belt Drive | - | - | - | 3308-9430 | 480-810 | $3,188.00 |
In stock
2 on Hand
|
Add to Compare List |
Roof Curb for 17 In. Square Base, for High Wind Applications, 24 In. High, Product # GPF-17-G24
$335.00
Model GPF roof curbs are designed for high wind applications and flat roof installations. Constructed of heavy gauge galvanized steel and fully formed on three sides with a single, fully welded seam.
- Designed to fit 17" roof curb cap
- 2-inch mounting flange
- Rigid, fiberglass insulation
- Welded, straight-sided construction
Centrifugal Inline Fan, Product # SQ-95-DGEX-QD, 275-920 CFM
$1,240.00
Model SQ, direct drive centrifugal inline fans feature a unique combination of installation flexibility, rugged construction, ease of service, high efficiency and low sound levels. These compact fans are ideal for indoor clean air applications including exhaust, return or make-up where space is a prime consideration.
- Compact size for height-restricted areas
- Composite backward inclined, non-overloading centrifugal wheel design
- Inlet and discharge duct collars for easy duct connection
- Removable access panels permit easy access to interior components for cleaning and servicing.
Centrifugal Inline Fan, Product # SQ-90-DGEX-QD, 188-738 CFM
$1,118.00
Model SQ, direct drive centrifugal inline fans feature a unique combination of installation flexibility, rugged construction, ease of service, high efficiency and low sound levels. These compact fans are ideal for indoor clean air applications including exhaust, return or make-up where space is a prime consideration.
- Compact size for height-restricted areas
- Composite backward inclined, non-overloading centrifugal wheel design
- Inlet and discharge duct collars for easy duct connection
- Removable access panels permit easy access to interior components for cleaning and servicing.
Roof Curb for 34 In. Square Base, for High Wind Applications, 24 In. High, Product # GPF-34-G24
$716.00
Model GPF roof curbs are designed for high wind applications and flat roof installations. Constructed of heavy gauge galvanized steel and fully formed on three sides with a single, fully welded seam.
- Designed to fit 34" roof curb cap
- 2-inch mounting flange
- Rigid, fiberglass insulation
- Welded, straight-sided construction
Roof Curb for 22 In. Square Base, 24 In. High, Product # GPI-22-G24
$326.00
GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.
- Designed to fit 22" roof curb cap
- 2-inch mounting flange
- Rigid, fiberglass insulation
- Welded, straight-sided construction
Roof Curb for 26 In. Square Base, 12 In. High, Product # GPI-26-G12
$265.00
GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.
- Designed to fit 26" roof curb cap
- 2-inch mounting flange
- Rigid, fiberglass insulation
- Welded, straight-sided construction
Roof Curb for 30 In. Square Base, 12 In. High, Product # GPI-30-G12
$295.00
GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.
- Designed to fit 30" roof curb cap
- 2-inch mounting flange
- Rigid, fiberglass insulation
- Welded, straight-sided construction
Roof Curb for 30 In. Square Base, 18 In. High, Product # GPI-30-G18
$383.00
GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.
- Designed to fit 30" roof curb cap
- 2-inch mounting flange
- Rigid, fiberglass insulation
- Welded, straight-sided construction
Roof Curb for 40 In. Square Base, for High Wind Applications, 24 In. High, Product # GPF-40-G24
$858.00
Model GPF roof curbs are designed for high wind applications and flat roof installations. Constructed of heavy gauge galvanized steel and fully formed on three sides with a single, fully welded seam.
- 2-inch mounting flange
- Rigid, fiberglass insulation
- Welded, straight-sided construction
- Designed to fit 40" roof curb cap
Roof Curb for 22 In. Square Base, 12 In. High, Product # GPI-22-G12
$218.00
GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.
- Designed to fit 22" roof curb cap
- 2-inch mounting flange
- Rigid, fiberglass insulation
- Welded, straight-sided construction
Roof Curb for 40 In. Square Base, 12 In. High, Product # GPI-40-G12
$402.00
GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.
- Designed to fit 40" roof curb cap
- 2-inch mounting flange
- Rigid, fiberglass insulation
- Welded, straight-sided construction
Roof Curb for 15 In. Square Base, 12 In. High, Product # GPI-15-G12
$157.00
GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.
- Designed to fit 15" roof curb cap
- 2-inch mounting flange
- Rigid, fiberglass insulation
- Welded, straight-sided construction
Axial Upblast Exhaust Fan, Product # RBU-2L48-50X-QD
$4,648.70
Model RBU is an upblast axial exhaust fan designed to discharge air and contaminants up and away from the roof deck for commercial and industrial applications like warehouses, manufacturing facilities and distribution centers. Utilizing a welded steel propeller, this belt-driven fan is designed to run at lower RPMs, producing lower sound levels and is recommended for sound sensitive applications. The motor is located inside of the airstream and is cooled as air exhausts over the motor.
- 48 inch steeply pitched, fabricated steel propeller for low sound levels
- 58 x 58 inch base with prepunched mounting holes for easy attachment to roof curb
- 54.5 x 54.5 inch recommended roof opening
Axial Upblast Exhaust Fan, Product # RBUMO-2L48-50X-QD
$4,790.80
The RBUMO is an upblast axial exhaust fan designed to discharge air and contaminants up and away from the roof surface for most commercial and many industrial applications. This belt-driven fan features a welded steel propeller designed to run at lower RPMs, generating low sound levels, making the RBUMO the ideal solution for sound critical installations. The motor is located outside of the airstream to allow for high temperature air to be exhausted as well as roof access to the motor.
- 48 inch steeply pitched, fabricated steel propeller for low sound levels
- 57.5 x 57.5 inch base with prepunched mounting holes for easy attachment to roof curb
- 54 x 54 inch recommended roof opening
Centrifugal Supply Fan, Product # SAF-118-LMDX-QD, 3308-9430 CFM
$3,188.00
Model SAF is a filtered supply fan designed to provide non-tempered make-up air to commercial or industrial buildings, including commercial kitchen applications. Fresh outdoor air is supplied to replace air lost through hood exhaust or general building ventilation.
- 42 x 42 inch base with prepunched mounting holes for easy attachment to roof curb
- Multiple motor and drive options available to meet any performance and application need
- 32.5 x 32.5 inch recommended roof opening
Shop Greenheck Fans
- Resources
- Literature
- Calculate Air Exchange (CFM)
- Calculate Static Pressure (SP)
- Typical Installations
- Product Cross Reference
- FAQs
Find by Performance
Our performance filter tool can help you choose the right product based on your performance requirements.
Filter Products
Type of material a particular product is constructed out of.
The class of motor insulation for a given motor. The temperature capabilities of each insulation class is defined as being the maximum temperature at which the insulation can be operated to yield an average life of 2, hours (A = 15?C, B = 135?C, F =
Indicates the space relationships of windings and changing values of the recurring cycles of AC voltages and currents. The most common power supplies are either single- or three-phase.
Describes the type of motor (i.e. Capacitor-Start, Split Phase, etc.)
Applications/uses for a particular fan or ventilator.
Square base dimension on power roof ventilators. Square fan panel dimension on sidewall propeller fans.
Transmission type of the ventilator (belt drive or direct drive).
The force that causes a current to flow in an electrical circuit. The voltage of a motor is usually determined by the supply to which it is attached. NEMA requires that motor be able to carry its rated horsepower at nameplate voltage plus or minus 1% al
The power required to drive an air moving device. Horsepower required varies with system conditions.
Describes the size (width x height) of the opening where air is drawn into a ventilator.
This dimension refers to the size of the discharge (where air leaves the ventilator) on a particular unit.
Refers to the orientation in which a product can be mounted.
The "ACTUAL" damper width and height. Dampers are undersized to allow them to be mounted into the duct work/wall opening.
This dimension describes the discharge diameter of a given product.
This is a feature which protects the motor from overheating and thus prolongs service life of the machine. In the event that the motor approaches overheating the thermal protection cuts power and only returns it after a cooling period.
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