---
product_id: 14097633
title: "Palram Rion Automatic Louver Opener"
brand: "palram"
price: "€ 152.03"
currency: EUR
in_stock: false
reviews_count: 9
url: https://www.desertcart.sk/products/14097633-palram-rion-automatic-louver-opener
store_origin: SK
region: Slovakia
---

# Automatic piston-driven vent control Heat-activated, no electricity Easy installation, compact design Palram Rion Automatic Louver Opener

**Brand:** palram
**Price:** € 152.03
**Availability:** ❌ Out of Stock

## Summary

> 🌿 Keep your greenhouse cool, smart, and effortlessly green!

## Quick Answers

- **What is this?** Palram Rion Automatic Louver Opener by palram
- **How much does it cost?** € 152.03 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/14097633-palram-rion-automatic-louver-opener)

## Best For

- palram enthusiasts

## Why This Product

- Trusted palram brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Energy-Free Operation:** Harnesses natural mineral expansion—no electricity needed—making it eco-friendly and cost-effective.
- • **Sleek & Compact Design:** At just 11" x 2" x 2", it fits seamlessly into your greenhouse setup without bulky hardware.
- • **DIY-Friendly Installation:** Designed for quick setup so you can upgrade your greenhouse environment in no time.
- • **Effortless Climate Control:** Automatically adjusts ventilation as temperatures rise, keeping your greenhouse perfectly balanced without lifting a finger.
- • **Plant Protection Guaranteed:** Prevents heat stress by opening vents precisely when your plants need fresh air the most.

## Overview

The Palram Rion Automatic Louver Opener is a compact, heat-activated ventilation system designed to automatically regulate greenhouse temperature. Using natural mineral expansion to power a piston mechanism, it opens vents as temperatures rise and closes them as they cool—without any electricity. Easy to install and built with durable aluminum, it ensures optimal airflow to protect plants from heat stress, making it an eco-friendly, low-maintenance climate control solution for serious gardeners.

## Description

Product Description The Automatic Louver Vent Opener was designed to automatically control the temperature and provide additional ventilation in all Rion Greenhouses. As the air inside the greenhouse warms, the vent gradually opens to allow the correct amount of air flow into the greenhouse and closes when the optimal temperature is reached. The vent arm was designed with the use of natural minerals that expand with heat to push a piston, which raises the window, as the air gets warmer then contracts as it cools, closing with the use of a spring. The Automatic Vent Opener operates without the use of electricity. Manufacturer Contact Information 877-627-8476

Review: Works well to control temperature in my greenhouse - I was pleasantly surprised the day after I installed this louver opener. It was a warm, fall day, but I didn't think it was getting hot in the greenhouse and certainly not hot enough to activate the opener. However, with the sun, the temps were rising into the upper 70's, lower 80's. I was happy to see the louver windows open and thereby drawing cooler air from the ground up through the open window at the top. I know my plants will thank me later this summer for purchasing it!
Review: Works well after tweaking - NOTE_ This review is for an installation on a Palram - Canopia Glory Greenhouse. A bit difficult to install, required two people at one point to attach spring return mechanism to greenhouse louver window frame. After installation I was not satisfied with the amount of opening on hot days. I traced the problem to the hardware supplied to attach the actuating lever to the window frame (see picture). The bolt that came with the kit was smaller in diameter than the original and therefore loose in the window frame hole. I drilled out the actuator lever hole to match the louver frame and used a larger bolt. Works better now.

## Features

- Assembled dimension: 11" w x 2" d x 2" h
- Automatically control ventilation
- Protect your plants from heat exposure
- Easy to install
- Heat activated, no electricity necessary

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00M5J33QM |
| Best Sellers Rank | #406,274 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #36 in Greenhouse Window Openers |
| Blade Material | Metal |
| Brand | Palram |
| Color | Silver |
| Customer Reviews | 4.2 4.2 out of 5 stars (42) |
| Date First Available | October 12, 2010 |
| Global Trade Identification Number | 00763552402462 |
| Item Weight | 1.3 pounds |
| Item model number | HG1033 |
| Manufacturer | Rion |
| Material | Aluminum |
| Number of Items | 1 |
| Operation Mode | Automatic |
| Product Dimensions | 2"W x 11"H |
| Size | 15.7"Lx2.7"Wx2"H |
| UPC | 856668002913 763552402462 |

## Product Details

- **Blade Material:** Metal
- **Brand:** Palram
- **Color:** Silver
- **Material:** Aluminum
- **Size:** 15.7"Lx2.7"Wx2"H

## Images

![Palram Rion Automatic Louver Opener - Image 1](https://m.media-amazon.com/images/I/31XxWjp7COL.jpg)
![Palram Rion Automatic Louver Opener - Image 2](https://m.media-amazon.com/images/I/41HedtbGS+L.jpg)
![Palram Rion Automatic Louver Opener - Image 3](https://m.media-amazon.com/images/I/41YMN1E0OSL.jpg)
![Palram Rion Automatic Louver Opener - Image 4](https://m.media-amazon.com/images/I/51BlR43TocL.jpg)
![Palram Rion Automatic Louver Opener - Image 5](https://m.media-amazon.com/images/I/51HqCXOjWDL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well to control temperature in my greenhouse
*by J***A on January 14, 2017*

I was pleasantly surprised the day after I installed this louver opener. It was a warm, fall day, but I didn't think it was getting hot in the greenhouse and certainly not hot enough to activate the opener. However, with the sun, the temps were rising into the upper 70's, lower 80's. I was happy to see the louver windows open and thereby drawing cooler air from the ground up through the open window at the top. I know my plants will thank me later this summer for purchasing it!

### ⭐⭐⭐⭐ Works well after tweaking
*by J***B on May 6, 2023*

NOTE_ This review is for an installation on a Palram - Canopia Glory Greenhouse. A bit difficult to install, required two people at one point to attach spring return mechanism to greenhouse louver window frame. After installation I was not satisfied with the amount of opening on hot days. I traced the problem to the hardware supplied to attach the actuating lever to the window frame (see picture). The bolt that came with the kit was smaller in diameter than the original and therefore loose in the window frame hole. I drilled out the actuator lever hole to match the louver frame and used a larger bolt. Works better now.

### ⭐⭐⭐⭐⭐ So far, so good.
*by M***H on January 7, 2016*

Does what it claims, attached to the louver on a Palram Mykos greenhouse. Appears to open at about 65 degrees or so, I like that it opens gradually. Have had it in use about three months now (October - January in north Texas) and have no complaints so far. Haven't been able to test it in hot weather just yet, so performance on a typical summer day is unknown right now. Will post future experience after a full season.

## Frequently Bought Together

- Rion Automatic Louver Opener, Silver, 15.7" Lx2.7 Wx2 H
- Palram - Canopia Plant Hangers for Canopia Greenhouses
- Palram - Canopia Shade Cloth for Canopia Greenhouses

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sk/products/14097633-palram-rion-automatic-louver-opener](https://www.desertcart.sk/products/14097633-palram-rion-automatic-louver-opener)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-17*