Greenhouse Ventilation Design
Features of Greenhouse Ventilation Systems
We suggest you place the exhaust fan up high in one end of the greenhouse. Place the shutter(s) down low on the opposite wall. Wire them to a one stage thermostat or two stage thermostat. This will enable your greenhouse ventilation system to give you the most efficient flow of air throughout the entire greenhouse. The motorized exhaust fans have an aluminum blade and pvc shutter. The heavy duty motors are totally enclosed and maintenance free. The motorized intake shutters are exterior grade PVC for a maintenance free unit. This will also resist rust and corrosion. The louvers are curved for a tight fit when closed. Corners are fused together for strength and durability. Greenhouse ventilation systems may be easily retrofitted in a polycarbonate greenhouse. But, we highly recommend purchasing them at the same time as a glass greenhouse.
Schaefer Motorized Exhaust Fan
- FREE SHIPPING to Contiguous US
- low profile aluminum blade, pvc shutter heavy duty motor
- 12″, 760 CFM, up to 120 sq ft. $257.00 Add to Cart
- 16″, 1250 CFM, 121- 200 sq ft. $335.00 Add to Cart
- 20″, 3122 CFM, 210 – 300 sq ft. $399.00 Add to Cart
Schaefer Motorized Intake Shutter
- FREE SHIPPING to Contiguous US
- white exterior grade PVC
- curved louvers for a tight fit when closed
- corners are fused for strength
- 12″, recommend 2 for 1 -12″ fan $316.00 Add to Cart
- 20″, recommend 2 for 1 -16″ fan $349.00 Add to Cart
- 22″, recommend 2 for 1 -22″ fan $367.00 Add to Cart
Schaefer Thermostats
- FREE SHIPPING to Contiguous US
- 1 speed heating or cooling $106.00 Add to Cart
- 2 stage heating, 2 stage cooling, or 2 speed cooling $169.00 Add to Cart
Solar Powered Greenhouse Vent
Do you have a greenhouse that needs ventilation where you have no electricity available? This intake shutter comes equipped with a solar powered opener. This opener is a wax cylinder that operates on the principle of contraction and expansion. When it is warm, the wax will expand and open the vent. When it is cool, it will contract and close the vent. This unit is available in 6 different sizes. The 4 smaller intake shutters may be installed directly into a polyfilm greenhouse (with no additional framing) using the wiggle wire that is included. If you prefer to mount these to a framed in opening minor modifications are required. Please let us know in customer comments how you intend to use the vent, framed or polyfilm. That way we will take care of the modifications for you. The 2 larger sizes must be mounted to a frame. The automatic openers can be adjusted so that they start opening between approximately 65 and 75 degrees F.
12″ Vent with Automatic Opener, Includes FREE SHIPPING to Contiguous US $145.00 Add to Cart
18″ Vent with Automatic Opener, Includes FREE SHIPPING to Contiguous US $199.00 Add to Cart
24″ Vent with Automatic Opener, Includes FREE SHIPPING to Contiguous US $225.00 Add to Cart
30″ Vent with Automatic Opener, Includes FREE SHIPPING to Contiguous US $279.00 Add to Cart
36″ Vent with Automatic Opener with no wiggle wire and base, Includes FREE SHIPPING to Contiguous US $255.00 Add to Cart
48″ Vent with Automatic Opener with no wiggle wire and base, Includes FREE SHIPPING to Contiguous US $355.00 Add to Cart
Solar Powered Exhaust Fans, Thermostats and Manual Louvers
Small greenhouse package:
6′ wide x 8′ long x 8′ high to 8′ wide x 12′ long x 9′ high
This package comes with a 12″ exhaust fan, 60 watt solar panel, 10 feet of cable with adaptors (no splicing required), solar panel platform mounting hardware, an exhaust fan shutter to protect the fan when it is not running and a thermostat kit. $825.00 with free shipping to the Contiguous US. Add to Cart
We recommend 1 – 18″ x 18″ solar powered greenhouse vent for this size kit
Medium greenhouse package:
10′ wide x 12′ long x 9′ high to 10′ wide x 16′ long x 9′ high
This package comes with a 16″ exhaust fan, 60 watt solar panel, 10 feet of cable with adaptors (no splicing required), solar panel platfom mounting hardware, an exhuast fan shutter to protect the fan when it is not running and a thermostat kit. $940.00 with free shipping to the Contiguous US. Add to Cart
We recommend 1 – 24″ x 24″ solar powered greenhouse vent for this size kit
Large greenhouse package:
12′ wide x 16′ long x 10′ high to 14′ wide x 30′ long x 10′ high
This package comes with a 20″ exhaust fan, 60 watt solar panel, 10 feet of cable with adaptors (no splicing required), solar panel platform mounting hardware, an exhaust fan shutter to protect the fan when it is not running and a thermostat kit. $1050.00 with free shipping to the Contiguous US. Add to Cart
We recommend 2 – 24″ x 24″ solar powered greenhouse vent for this size kit