Alton | Thermofor Classic Roof Vent Auto Opener
The Thermofor Classic Roof Auto Opener is a simple, reliable way to keep your Alton greenhouse properly ventilated, without any manual effort. Designed specifically for Alton greenhoue roof vents, it uses a heat-sensitive, oil-filled piston that automatically opens the vent as temperatures rise, helping create a healthier growing environment for your plants.
As the greenhouse warms, the piston expands and gently lifts the vent. When temperatures cool, the vent closes on its own. You can easily adjust the opening range between 59°F and 77°F to match your growing conditions. The piston is included and ready to install.
- Automatically opens your roof vent as the greenhouse heats up
- Helps protect plants from overheating by improving airflow
- No electricity or batteries needed, fully powered by temperature changes
- Easy to install, compatible with most aluminum and wooden greenhouses, clamps onto many aluminum frames
Adding an auto opener is one of the easiest ways to stabilize greenhouse temperatures and get the most out of your roof ventilation. It works quietly in the background, responding naturally to heat, so your plants stay comfortable even when you’re not around.
The operating temperature can be adjusted to suit seasonal needs or specific plant requirements.
Backed by a two-year warranty for added peace of mind.
Original: $150.00
-65%$150.00
$52.50More Images
Alton | Thermofor Classic Roof Vent Auto Opener
The Thermofor Classic Roof Auto Opener is a simple, reliable way to keep your Alton greenhouse properly ventilated, without any manual effort. Designed specifically for Alton greenhoue roof vents, it uses a heat-sensitive, oil-filled piston that automatically opens the vent as temperatures rise, helping create a healthier growing environment for your plants.
As the greenhouse warms, the piston expands and gently lifts the vent. When temperatures cool, the vent closes on its own. You can easily adjust the opening range between 59°F and 77°F to match your growing conditions. The piston is included and ready to install.
- Automatically opens your roof vent as the greenhouse heats up
- Helps protect plants from overheating by improving airflow
- No electricity or batteries needed, fully powered by temperature changes
- Easy to install, compatible with most aluminum and wooden greenhouses, clamps onto many aluminum frames
Adding an auto opener is one of the easiest ways to stabilize greenhouse temperatures and get the most out of your roof ventilation. It works quietly in the background, responding naturally to heat, so your plants stay comfortable even when you’re not around.
The operating temperature can be adjusted to suit seasonal needs or specific plant requirements.
Backed by a two-year warranty for added peace of mind.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Thermofor Classic Roof Auto Opener is a simple, reliable way to keep your Alton greenhouse properly ventilated, without any manual effort. Designed specifically for Alton greenhoue roof vents, it uses a heat-sensitive, oil-filled piston that automatically opens the vent as temperatures rise, helping create a healthier growing environment for your plants.
As the greenhouse warms, the piston expands and gently lifts the vent. When temperatures cool, the vent closes on its own. You can easily adjust the opening range between 59°F and 77°F to match your growing conditions. The piston is included and ready to install.
- Automatically opens your roof vent as the greenhouse heats up
- Helps protect plants from overheating by improving airflow
- No electricity or batteries needed, fully powered by temperature changes
- Easy to install, compatible with most aluminum and wooden greenhouses, clamps onto many aluminum frames
Adding an auto opener is one of the easiest ways to stabilize greenhouse temperatures and get the most out of your roof ventilation. It works quietly in the background, responding naturally to heat, so your plants stay comfortable even when you’re not around.
The operating temperature can be adjusted to suit seasonal needs or specific plant requirements.
Backed by a two-year warranty for added peace of mind.
