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Charley's Greenhouse
17979 State Route 536
Mount Vernon, WA 98273


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3460 Schaefer Best Vent System for 8' x 16', (760 cfm) (C3460 08 16)


This is a Charley's exclusive item, available only from Charley's Greenhouse.

Rugged, attractive

All components of this system are adapted to the humid greenhouse environment. Parts are made of aluminum, stainless steel, and PVC; and all steel parts are either enameled or vinyl coated. The variable speed 12" exhaust fan (760 cfm) is mounted on a rustproof PVC shutter. The 22" PVC shutter is neatly assembled and closes tighter than other shutters. The shutter motor is in an aluminum housing pre-installed on the shutter frame. The thermostat and variable fan speed control are in plastic housings. They are “waterproof” when installed according to directions. These very attractive systems are used exclusively in our top-of-the-line greenhouses.

This is a hard-wired system. See Framing and Wiring for Fan Systems for important information about using the parts together as a system.

See Also
3461 Schaefer Best Vent System for 10' x 12' (760 cfm) (C3460 10 12)
3462 Schaefer Best Vent System for 10' x 20' (1250 cfm) (C3460 10 20)
3464 Schaefer Best Vent System for 14' x 20' (3000 cfm) (C3460 14 20)

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Learn More About
3460 Schaefer Best Vent System for 8' x 16', (760 cfm) (C3460 08 16)

General Product Information:
System Includes:
1 – Schaeffer Exhaust Fan 12” x 12”
1 – Motorized Intake Shutters 22” x 22”
1 – Waterproof Thermostat
1 – Fan Speed Control

Shipping Information:
Standard shipping charges apply.

Some products will have PDF, Flash and QuickTime Video files available for your viewing pleasure. PDF, QuickTime & Flash files all require free third party viewers or players. If you need to download and install either Adobe Acrobat Reader for PDF files, QuickTime for QT Video files or Macromedia Flash to view Flash files, please visit our downloads page.

Adobe PDF Files

Web Page Help Files

See the PDF files above for instruction and installation diagrams.

Exhaust Fan Information:
Dimensions: 12" x 12"
Color: White

Installation: (See above PDFs)

  1. Cut rough-in opening in wall for appropriate size shutter fan - 12-1/2" x 12-1/2".
  2. Place fan in opening.
  3. Drill holes through the frame face at desired locations.
  4. Fasten fan in opening using appropriate fasteners. (Not furnished)
  5. Wiring should be done by a licensed electrician - refer to local electrical codes.
Motorized Intake Shutter Information:
This exterior PVC grade plastic shutter is made to tightly close, minimizing draft and heat lost. Made to withstand the weather; will not rust. Aerodynamic vanes on nylon bearings never need lubrication, are pre-installed along with a 120V shutter motor in an aluminum housing. The 22” shutter comes complete for standard 24” framing.

Dimensions: 22" x 22"
Rough-In Size - 22-1/2" x 22-1/2"
Color: White shutter anodized aluminum shutter motor.

See Fan & Shutter PDF above for instructions.

Installation Directions:
  1. Cut rough-in opening in wall for appropriate size intake - 22-1/2" x 22-1/2".
  2. Place intake in opening.
  3. Fasten intake in opening using appropriate fasteners. (Not furnished)
  4. Wiring should be done by a certified electrician - refer to local electrical codes.
Can be cleaned with a mild soap solution and soft brush.

Waterproof Thermostat Information:
The moisture proof case offers rugged, weatherproof protection from the wet greenhouse environment. The stainless steel external temperature sensor is quick to sense and respond to temperature changes. Large temperature dial is easy to read and set. Range from 40° F to 100° F. Rated at 16 amps, 1500 watts, and 120 volts.

Dimensions: 3” wide x 5” long
Color: Gray with black dial.

See PDFs above for installation and operating instructions.

Safety Information:
  1. Be certain that the electrical load to be controlled does not exceed the thermostat rating.
  2. Disconnect all power before installing or servicing.
  3. Installation must be made by a trained, experienced service person.
  4. This thermostat is intended for permanent installation and must be installed in accordance with the Nation Electrical Code (NEC) and all applicable local codes and ordinances. Use copper wire only, insulate or wire nut all unused leads.
  5. This thermostat is suitable for NEMA 4X application and is NOT to be used in potentially flammable or explosive atmospheres.
  6. In cases in which property damage may result from malfunction of the thermostat a backup system should be used. Where critical or high value products are to be maintained, an approved temperature limit should be wired in series with this thermostat. In less critical applications, a second thermostat with alarm contacts can be used to provide redundancy.
  7. A separate S.P.D.T. load switch (not supplied) must be used in applications requiring control of both heat and cooling. Failure to provide the load transfer switch could result in control failure and equipment damage.
  8. The Greenhouse thermostat is designed to prevent entry of water or dust inside the enclosure. If the cover is missing or the enclosure is cracked or broken do not install, use or operate as this could result in personal injury and or property damage.
Check all connections for un-insulated or exposed wires. Check stainless steel thermostat for damage each year.
Common Recommendations:
To control temperatures by regulating automated exhaust fan systems and 120 V heaters.

Fan Speed Control Information:
See PDFs above for installation instructions.

A qualified electrician should install this unit. Instructions are very complete. This is a no switch (NS) model with two-wire control.

Cover plate is mounted last so that the speed control minimum setting may be adjusted after the unit is wired and live.

For further information, please contact Charley's Customer Service at 1-800-322-4707.

This item is backed by Charley's 100% guarantee. If you are not completely satisfied, return your purchase in the condition you receive it, within 30 days, for a refund, exchange or credit - whichever you prefer. If any product is found to be defective within the first year, it may be returned or exchanged for full credit.