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Greenhouses are perfect for over wintering plants

 

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Need help sizing your accessories for your greenhouse kits? Check out or free planning and building a greenhouse guide, or contact Advance Greenhouses.

 

schaefer shutter fans and motorized intakes

This picture is showing a shutter fan on the left and the motorized intake on the right.

Our versatile shutter fan allows you to exhaust air and provide cross-ventilation in small to medium size buildings. Frames and shutters are made of white industrial grade corrosion-proof PVC with UV inhibitors. The powder coated white fan guard supports the moisture resistance motor that will operate at single or variable speed (choose a control to determine speed operation). Made in USA. Cost includes free shipping to continental US.

For installation instructions for the shutter fan, click here

Model Size CFM HP RPM Volts Amps Rough in size    
SFT-1200 12" 760 1/30 1550 115 .7 12 5/8" Square $225.00
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SFT-1600 16" 1250 1/10 1725 115/230 .9/.45 16 5/8" Square $275.00
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SFT-2000 20" 3122 1/3 1725 115/230 2.4/1.2 20 5/8" Square $345.00
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Schaefer's 115 volt motorized intake creates an effective seal against outside air when closed, then, when appropriately wired, opens as the fan turns on to allow fresh air in. Frame and shutters are made of white industrial grade corrosion-proof PVC with UV inhibitors. The corrosion resistant aluminum gear box houses the quiet, long life gear motor. Cost includes free shipping to continental US.
 
Model Size Volts Rough in size    
MIT-1200 12" 115 12 5/8" Square $260.00
Quantity:
MIT-1600 16" 115 16 5/8" Square $270.00
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MIT-2000 20" 115 20 5/8" Square $280.00
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MIT-2200 22" 115 22 3/4" Square $290.00
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Schaefer Mechanical thermostats for single or two-speed fan temperature control

schaefer thermostat one stage   schaefer thermostat two stage

The finest most reliable automatic thermostats available. Designed especially for building ventilation systems. Wide temperature range with narrow operating differential. Both single speed, two-stage and two-speed models are available in code approved moisture-proof enclosure. Price includes free shipping to continental US.

Model Type Amp Capacity    
TF115 1-speed heating or cooling 120 volt+16 amp $87.00
Quantity:
TH109 2-stage heating, 2-stage cooling or 2-speed cooling 227 volt+10 amp $169.00
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Automatic Roof Vent Opener

Keeping your greenhouse cool is easier with the addition of automatic openers. Adding a louver window opposite the door will also improve airflow.

• Allows for automatic controlling of greenhouse temperature to provide ideal growing conditions, even when no one is at home
• No batteries or electricity required
• May be adjusted for different opening temperatures
• Easily installed; simply replaces existing vent arm
• One-year warranty; average life is several years.

             automatic roof vent opener  

          $ 59.99 includes free shipping to continental US only if ordered with a greenhouse. If ordered separately there will be a shipping charge.

Quantity:

Roof vent opener when ordered without a greenhouse. $69.99 including shipping to continental US.

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Circulating fans

 Installing circulating fans in your greenhouse is a good investment. During the winter when the greenhouse is heated, you need to maintain air circulation so that temperatures remain uniform throughout the greenhouse. Without air mixing fans, the warm air rises to the top and the cool air settles around the plants on the floor. Fans help to maintain uniform temperatures, and will reduce heating costs up to 5%. Fans also prevent mildew and plant diseases.

  Small fans with a cubic foot per minute air moving capacity equal to one quarter of the air volume of the greenhouse are sufficient. For small greenhouses, place the fans in diagonally opposite corners, but out from the sides and ends. The goal is to develop a circular (oval) pattern of air movement. Turn the fans off during the summer when the greenhouse will be needed to be ventilated.

Clip On Circulating Fan

air king clip on circulating fan

click on picture for larger view

 

Air King 9145 – 6″ Clip-On Fan

2 speed motor

1300 HP

120V

permanently lubricated

controls rear mounted

$49.99 including shipping to Contiguous US

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Schaefer Circulating Fan

schaefer circulating fan

Click on Picture for Larger View

 The Schaefer Ventilation Versa-Kool® eight inch air circulation fan is totally enclosed heavy-duty, thermally protected, pre-lubricated ball bearings, maintenance free motor. Patented guard spacing and custom engineered blades result in greater air movement at lower noise levels. Powder coated steel fan mount. Aluminum fan blade. Made in the USA. Cost includes free shipping to continental US.

Model Size CFM HP Volts RPM Fan Dimension    
VK8 8" 448 1/100 115 1550 9 1/2" deep x 10" wide $150.00
Quantity:

 

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