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Poly-Vent natural ventilation system

Improved Poly-Vent natural ventilation system is the cost effective solution for your ventilation needs.
Growers with all styles of greenhouses and crops have found it to be the better alternative to expensive
rack & pinion vents and leaky roll-up curtain systems. The new frame has improved water drainage and
is now designed to be mounted to most greenhouse sidewalls without modification. Poly-Vent operates
using only small blowers that can be thermostatically controlled. Single-stage allows you to fully open
or close off your ventilation and two-stage gives you the ability to select different temperatures at which
the top and bottom will open or close. When fully inflated, the dead air also acts as an insulator.
Available in 24”, 36”, 48” and 60” heights.

    • Thermostatically controlled
      Single-staged or two-staged automatic temperature control for optimal control.

    • Rugged construction
      Built tough with a 24-gauge galvanized frame for years of use.

    • UV-stabilized 4-year poly
      Clear, long-lasting poly provides excellent light transmission.

  • Photos
  • Options and accessories
  • Pricing
  • Support
Rugged construction
24 gauge galvanized frame is built to stand up to even the harshest environments and give your greenhouse years of natural ventilation.
Full-closed
In the full-closed position, cool air is prevented from entering the greenhouse and the dead air space acts as an insulated wall.

Single or two-stage ventilation
Poly-Vent II (single-stage) or Poly-Vent III (two-stage)
give you the choice of full or partial venting for even greater control.

Full-open
In the full-open position, Poly-Vent allows complete, natural and free movement of outside air into the greenhouse. There are no expensive fans or cooling pads required.
Control blowers
One or two long-lasting squirrel-cage blowers
operate the ventilator regardless of length.
Mix and Match
For maximum sidewall ventilation mix and match
single + two-stage stacked systems to any height.
Improved design
Sheds water away from your structure.


12

 

Schaefer mechanical thermostat
The most reliable automatic thermostats available. Wide temperature range with narrow operating differential. Rugged, code-approved, moisture-proof enclosures stand up to the greenhouse environment.

Part # Description
Model #
Price
RR5003 One-speed heating or cooling
T115
$72.00
RR5010 Two-stage heating or cooling
TH109
$145.00
FOB Castle Rock, MN

 

Poly-Vent back-up blower system
The back-up blower system will keep your Poly-Vent system inflated in the unlikely event of a power outage. Includes adapter plate, control box, DC blower, battery charger w/auto shut off. (12-volt battery is not included.)

Part # Description
Price
BUBSII Poly-Vent II back-up system
$202.00
BUBSIII Poly-Vent III back-up system
$269.00
FOB Castle Rock, MN


Poly-Vent II
(single-stage)
Base Frame includes: Poly-Vent II, top and bottom 24 gauge galvanized Poly-Vent gutter, galvanized front and rear guides and hardware.

Stacking Frame includes: Poly-Vent II, top and bottom 24 gauge galvanized Poly-Vent gutter, galvanized front and rear guides and hardware.
End package includes: Sheet metal enclosures for both ends of frames, one blower to inflate Poly-Vent II, blower mount, one 3-inch
diameter flex tube, air transfer gaskets and all hardware.

Size
Base Frame Part #
Base Frame Price L/FT
Stacking Frame Part #
Stacking Frame Price L/FT

End Package Part #   

End Package
24"
PV7022
$7.80
PV7122
$6.40
PV8022
$170.00
36"
PV7032
$8.50
PV7132
$7.40
PV8032
$180.00
48"
PV7042
$9.00
PV7142
$8.50
PV8042
$185.00
60"
PV7052
$10.00
PV7152
$9.35
PV8052
$190.00
FOB Castle Rock, MN


Poly-Vent III
(two-stage)
Frame includes: Poly-Vent III, top and bottom 24 gauge galvanized Poly-Vent gutter, galvanized front and rear guides and all hardware.

Stacking Frame includes: Poly-Vent III, top and bottom 24 gauge galvanized Poly-Vent gutter, galvanized front and rear guides and all hardware.
End package includes: Sheet metal enclosures for both ends of frames, two blowers to inflate Poly-Vent III, blower mounts, two 3-inch diameter flex tubes, air transfer gaskets and all hardware
.

Size
Base Frame Part #
Base Frame Price L/FT

Stacking Frame Part #

Stacking Frame Price L/FT

End Package Part #
End Package
36"
PV7033
$9.00
PV7133
$7.60
PV8033
$260.00
48"
PV7043
$9.75
PV7143
$8.70
PV8043
$270.00
60"
PV7053
$10.60
PV7153
$9.60
PV8053
$275.00
FOB Castle Rock, MN


Poly-Vent plastic only

Size
Poly-Vent II Part #
Poly-Vent III Part #

Price (per lineal ft.)

24"
PV3500
 N/A

$1.85

36"
PV3502
PV3532
$2.35
48"
PV3504
PV3534
$2.75
60"
PV3506
PV3536
$3.50
$15 cut charge if less than stock roll. $32 to cut and seal both ends. FOB Castle Rock, MN
Support
If you have questions or are having difficulty with your Poly-Vent please download the setup manual below along with other helpful files.
You will need the free Adobe Acrobat Reader to view these files.
Poly-Vent Manual (6.6mb) - Poly-Vent Retro Fit Manual (6.9mb)
If you need additional technical support or have a question not answered here, we can be reached 8 AM to 4:30 PM central time, Monday through Friday at: Phone: 800-852-3443 (toll-free US and Canada) or 651-463-7009
FAX: 651-463-2479
E-mail: support@poly-tex.com