Alton | Bayliss XL Roof Vent Auto Opener
The Bayliss Clip-On Automatic Greenhouse Vent Opener is a simple, reliable solution for maintaining the ideal temperature inside your greenhouse, without constant monitoring. Designed for convenience and performance, this unit automatically opens and closes your roof vent based on temperature changes, helping protect your plants from overheating.
Built to lift up to 12 lbs (5.5 kg), this auto vent opener provides a maximum opening of approximately 12 inches, allowing consistent airflow when your greenhouse needs it most. Its compact 11-inch design and satin anodized finish deliver both durability and a clean, professional look that complements most greenhouse frames.
KEY FEATURES
- Clip-on design: Quick, hassle-free installation on compatible greenhouse vents.
- 12 lb lifting capacity: Supports vent loads up to 12 lbs (5.5 kg).
- 12-inch maximum opening: Helps release excess heat and improve airflow.
- No electricity required: Powered entirely by heat expansion.
- Satin anodized finish: Durable, clean, and professional appearance.
SPECIFICATIONS
Product Type: Automatic greenhouse vent opener
Installation Style: Clip-on
Maximum Vent Opening: Approximately 12 inches
Maximum Lifting Capacity: 12 lbs (5.5 kg)
Unit Length: 11 inches
Finish: Satin anodized
Power Source: Heat expansion, no electricity or batteries required
HOW IT WORKS
Automatic greenhouse vent openers are one of the most effective ways to regulate temperature and protect your plants year-round. As temperatures rise, the opener gradually lifts the vent to release excess heat. When it cools down, the vent closes automatically, helping maintain a stable growing environment day and night.
WARRANTY
Backed by a 2-year guarantee for added confidence in performance and durability.
FREQUENTLY ASKED QUESTIONS
How does an automatic greenhouse vent opener work?
It uses a heat-sensitive piston that expands as temperatures rise, opening the vent. When temperatures drop, the piston contracts and closes the vent.
Do I need electricity or batteries?
No. This unit operates entirely on thermal expansion, so it requires no power source.
Will this fit my greenhouse?
The clip-on design fits many standard greenhouse roof vents, especially aluminum frames. Please confirm compatibility with your greenhouse model before ordering.
Why should I use an auto vent opener?
It helps prevent overheating, improves airflow, and keeps your greenhouse environment more stable, even when you’re not there to manage it manually.
Original: $150.00
-65%$150.00
$52.50Product Information
Product Information
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Description
The Bayliss Clip-On Automatic Greenhouse Vent Opener is a simple, reliable solution for maintaining the ideal temperature inside your greenhouse, without constant monitoring. Designed for convenience and performance, this unit automatically opens and closes your roof vent based on temperature changes, helping protect your plants from overheating.
Built to lift up to 12 lbs (5.5 kg), this auto vent opener provides a maximum opening of approximately 12 inches, allowing consistent airflow when your greenhouse needs it most. Its compact 11-inch design and satin anodized finish deliver both durability and a clean, professional look that complements most greenhouse frames.
KEY FEATURES
- Clip-on design: Quick, hassle-free installation on compatible greenhouse vents.
- 12 lb lifting capacity: Supports vent loads up to 12 lbs (5.5 kg).
- 12-inch maximum opening: Helps release excess heat and improve airflow.
- No electricity required: Powered entirely by heat expansion.
- Satin anodized finish: Durable, clean, and professional appearance.
SPECIFICATIONS
Product Type: Automatic greenhouse vent opener
Installation Style: Clip-on
Maximum Vent Opening: Approximately 12 inches
Maximum Lifting Capacity: 12 lbs (5.5 kg)
Unit Length: 11 inches
Finish: Satin anodized
Power Source: Heat expansion, no electricity or batteries required
HOW IT WORKS
Automatic greenhouse vent openers are one of the most effective ways to regulate temperature and protect your plants year-round. As temperatures rise, the opener gradually lifts the vent to release excess heat. When it cools down, the vent closes automatically, helping maintain a stable growing environment day and night.
WARRANTY
Backed by a 2-year guarantee for added confidence in performance and durability.
FREQUENTLY ASKED QUESTIONS
How does an automatic greenhouse vent opener work?
It uses a heat-sensitive piston that expands as temperatures rise, opening the vent. When temperatures drop, the piston contracts and closes the vent.
Do I need electricity or batteries?
No. This unit operates entirely on thermal expansion, so it requires no power source.
Will this fit my greenhouse?
The clip-on design fits many standard greenhouse roof vents, especially aluminum frames. Please confirm compatibility with your greenhouse model before ordering.
Why should I use an auto vent opener?
It helps prevent overheating, improves airflow, and keeps your greenhouse environment more stable, even when you’re not there to manage it manually.
