1. Safety Information
Caution: During assembly of the greenhouse, sharp edges and heavy components are present. Always use appropriate protective equipment, such as gloves, and follow all instructions carefully to prevent injury.
The greenhouse cover is exposed to UV radiation. While the material is UV-resistant, prolonged direct exposure to sunlight can be harmful. Protect your skin and eyes from direct sunlight when working inside or around the greenhouse for extended periods.
Ensure the greenhouse is securely anchored to the ground to prevent damage or injury from strong winds. Regularly inspect the structure for any signs of wear or damage, especially after severe weather conditions.
2. Product Overview
The WOLTU Greenhouse (Model GWH00902) is designed to provide an optimal environment for cultivating plants, protecting them from adverse weather conditions such as cold, frost, rain, and excessive sun. Its tunnel shape and generous dimensions make it suitable for a variety of plants, including sensitive potted plants and vegetables like tomatoes.
Key Features:
- Effective Protection: Shields plants from cold, frost, rain, and sun.
- Spacious Design: 300 x 200 x 200 cm (L x W x H) providing 6 m² of growing area.
- Premium Quality: Robust frame of 19 mm thermally galvanized, corrosion-resistant steel tubes.
- Durable Cover: 140 g/m² PE-mesh cover, UV-resistant and frost-resistant.
- User-Friendly Access: Features a zippered roll-up door and 6 side windows with mosquito nets for ventilation and pest control.

Figure 1: Greenhouse Dimensions (300cm L x 200cm W x 200cm H)
3. Package Contents
Before beginning assembly, please verify that all components listed below are present and undamaged. If any parts are missing or damaged, please contact customer support.

Figure 2: All Included Components
The package typically includes:
- Various lengths of steel tubes (19mm diameter, thermally galvanized)
- Connecting pieces and fasteners (screws, nuts, pegs)
- PE-mesh cover (140 g/m², green)
- Rope for securing
- Assembly instructions (this manual)
4. Setup Instructions
The WOLTU Greenhouse is designed for easy assembly without specialized tools. Follow these steps carefully:
- Prepare the Site: Choose a level, well-drained area for your greenhouse. Clear any debris or sharp objects that could damage the cover.
- Assemble the Base Frame: Connect the shortest straight steel tubes to form the rectangular base of the greenhouse. Ensure all connections are secure.
- Install Vertical Supports: Attach the vertical steel tubes to the base frame.
- Construct the Arches: Connect the curved steel tubes to form the arched roof structure. These will connect to the vertical supports.
- Secure the Frame: Ensure all frame connections are tightened. The coated steel tubes form a stable structure when properly assembled.
- Drape the Cover: Carefully unfold the PE-mesh cover and drape it over the assembled steel frame. Ensure the zippered door is positioned correctly.
- Fasten the Cover: Secure the cover to the frame using the provided fasteners and ties. Ensure the cover is taut to prevent flapping in the wind.
- Anchor the Greenhouse: Use the provided pegs to anchor the base of the greenhouse firmly to the ground. For added stability, especially in windy areas, consider using additional weights or anchors.

Figure 3: Assembled Greenhouse
5. Operating Instructions
To maximize the benefits of your WOLTU Greenhouse, follow these operational guidelines:
- Access: Use the zippered roll-up door for easy entry and exit. The door can be rolled up and secured to remain open for extended periods.
- Ventilation: The greenhouse features 6 side windows, each with an outer PE net and an inner mosquito net. Open these windows to allow for good air circulation and to regulate internal temperature and humidity. Opening both the windows and the roll-up door simultaneously provides excellent cross-ventilation.
- Pest Control: The integrated mosquito nets on the windows help prevent pests from entering while maintaining airflow.
- Plant Placement: The generous height allows for larger plants, hanging baskets, or vines. Arrange your plants to optimize light exposure and air circulation.

Figure 4: Rolled-up Window Detail

Figure 5: Detailed Features (Zipper, Buckle, Frame Connection)
6. Maintenance
Regular maintenance will extend the lifespan and effectiveness of your greenhouse:
- Cleaning the Cover: Periodically clean the PE-mesh cover with mild soap and water to remove dirt, dust, and algae buildup, which can reduce light transmission. Avoid harsh chemicals or abrasive cleaners.
- Frame Inspection: Regularly check all steel tube connections and fasteners to ensure they remain tight and secure. Re-tighten if necessary. Inspect the frame for any signs of rust or damage.
- Cover Inspection: Inspect the cover for tears, punctures, or signs of degradation, especially at stress points like fastening areas. Small tears can often be repaired with greenhouse repair tape.
- Anchoring: Verify that the greenhouse remains securely anchored to the ground, particularly after strong winds or heavy rainfall. Re-secure pegs or add additional anchoring if needed.
- Winter Preparation: While the cover is frost-resistant, in areas with heavy snowfall, it is advisable to remove the cover during winter to prevent structural damage from snow accumulation. Store the cover in a dry, protected area.
7. Troubleshooting
Here are some common issues and their potential solutions:
- Greenhouse Instability in Wind:
Cause: Insufficient anchoring or loose frame connections.
Solution: Ensure all frame connections are tightly secured. Verify that ground pegs are fully inserted and consider adding additional anchors or weights (e.g., sandbags) to the base, especially in exposed locations. - Cover Tears or Damage:
Cause: Wear and tear, sharp objects, or strong winds.
Solution: For small tears, use specialized greenhouse repair tape. For larger damage, the cover may need replacement. Regularly inspect the cover for early signs of wear. - Poor Ventilation/High Humidity:
Cause: Windows and door not opened sufficiently.
Solution: Ensure all 6 windows and the main door are opened during warm periods to allow for maximum airflow and humidity reduction. - Pest Infestation:
Cause: Pests entering through openings.
Solution: Ensure mosquito nets on windows are intact and properly closed when not ventilating. Inspect plants regularly for pests and apply appropriate organic pest control methods. - Difficulty Assembling Frame:
Cause: Incorrect tube orientation or connections.
Solution: Double-check the assembly diagram and ensure each tube is connected to the correct corresponding part. Do not force connections; if parts don't fit, re-examine the instructions.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | GWH00902 |
| Dimensions (L x W x H) | 300 x 200 x 200 cm |
| Weight | 15 kg |
| Frame Material | 19 mm Thermally Galvanized Alloy Steel |
| Cover Material | 140 g/m² PE-Mesh (UV-resistant, Frost-resistant) |
| Color | Green |
| Number of Doors | 1 (Zippered, Roll-up) |
| Number of Windows | 6 (with PE net and mosquito net) |
| Usage | Outdoor |
9. Warranty Information
Specific warranty details for the WOLTU Greenhouse GWH00902 are not provided in the product information. Please refer to the retailer's purchase terms and conditions or contact WOLTU customer support directly for warranty inquiries.
10. Customer Support
If you have any questions, require assistance with assembly, or encounter issues not covered in this manual, please contact:
- The retailer from whom you purchased the product.
- WOLTU Customer Service (contact information typically found on the manufacturer's official website or product packaging).
Please have your model number (GWH00902) and purchase details ready when contacting support.





