Schaefer Shutter Fans and Motorized intakes

 

Model	Size	CFM	HP	RPM	Volts	Amps	Rough in size
Sf1276-1	12"	760	1/30	1550	115	.7	12 5/8" Square	$224.00	Quantity:
Sf1612-1	16"	1250	1/10	1725	115/230	.9/.45	16 5/8" Square	$281.00	Quantity:
Sf2030-1	20"	3122	1/3	1725	115/230	2.4/1.2	20 5/8" Square	$390.00	Quantity:

 

 

Model	Size	Volts	Rough in size
MI-1200	12"	115	12 5/8" Square	$231.00	Quantity:
MI-1600	16"	115	16 5/8" Square	$269.00	Quantity:
MI-2000	20"	115	20 5/8" Square	$314.00	Quantity:
MI-2200	22"	115	22 3/4" Square	$345.00	Quantity:

Schaefer Mechanical thermostats for single or two-speed fan temperature control

  

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.

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.

Roof Vents

    

Achieve the maximum ventilation possible on hot and humid days with a high tunnel roof vent!  This roof installed ventilation system provides a chimney-effect movement of hot air out of the tunnel. Vent is constructed of crystal clear, rigid plastic mounted on an aluminum frame that measure 36" x 21". (Actual opening of vent is 30" x 14".)Vent opens and closes automatically within preset temperature ranges. To maximize ventilation, the vent should be installed as high up on the roof as possible. It is recommended the cylinder from the automatic opener be removed during the winter months. Availability is 10 - 14 days.

INSTALLATION TIPS

The High Tunnel Vent is installed from the inside of the tunnel. (Instructions are included with each vent). Slits are made in the plastic so that the vent can be inserted and positioned on the outside of the tunnel. To prevent water leakage, be careful not to cut the slits any larger than the aluminum frame of the vent.

When the vent is in place, insert the bent wire (wiggle wire, wire lock) into the channels on each of the four sides. (For the first installation, the job is easier with a second person.) After installation, trim the plastic so that there is about a 2-inch flap beyond the wire inserts. This roof vent may also be site fit to an aluminum or wood greenhouse.

To maximize ventilation, the vent should be installed as high up on the roof as possible. The present recommendation is to place a vent about every 20 feet to realize the most effect

$229.00 each including shipping to the Continental United States

Quantity:

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

Model	Size	CFM	HP	Volts	RPM	Fan Dimension
VS8VK	8"	466	1/100	115	1550	9 1/2" deep x 10" wide	$177.00	Quantity: