---
product_id: 2269598
title: "Exaco BioStar 1500 Premium Cold Frame"
brand: "juwel"
price: "$3928621"
currency: COP
in_stock: true
reviews_count: 10
url: https://www.desertcart.co/products/2269598-exaco-biostar-1500-premium-cold-frame
store_origin: CO
region: Colombia
---

# Easy assembly UV-resistant Weatherproof Exaco BioStar 1500 Premium Cold Frame

**Brand:** juwel
**Price:** $3928621
**Availability:** ✅ In Stock

## Summary

> 🌱 Grow Your Green Thumb with Confidence!

## Quick Answers

- **What is this?** Exaco BioStar 1500 Premium Cold Frame by juwel
- **How much does it cost?** $3928621 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/2269598-exaco-biostar-1500-premium-cold-frame)

## Best For

- juwel enthusiasts

## Why This Product

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

## Key Features

- • **Patented Design:** Innovative structure for optimal growth
- • **Durable Materials:** 10-year guarantee against yellowing
- • **Robust Construction:** 8mm polycarbonate for superior insulation
- • **Efficient Ventilation:** Three adjustable windows for airflow
- • **Lightweight Yet Sturdy:** Only 23 lbs for easy relocation

## Overview

The Exaco BioStar 1500 Premium Cold Frame is a state-of-the-art gardening solution featuring a patented design, UV-resistant materials, and a robust aluminum frame. With three adjustable vents and 8mm polycarbonate double skin panes, it ensures optimal growing conditions while being easy to assemble. Backed by a 10-year guarantee against yellowing, this cold frame is perfect for any gardening enthusiast looking to elevate their outdoor space.

## Description

Exaco BioStar 1500 Premium Cold Frame

## Features

- Patented design
- UV-resistant, 10 year guarantee against yellowing of panes
- Three windows on the top
- Weather resistant with 8mm polycarbonate double skin panes
- Easy to assemble (does require customer to drill holes for installation of ventilators and automatic opener)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Frame Material | Aluminum |
| Cover Material | Polycarbonate (PC) |
| Number Of Vents | 3 |
| Color | Clear |
| Item Weight | 23 Pounds |
| Nominal Wall Thickness | 8 millimeters |

## Images

![Exaco BioStar 1500 Premium Cold Frame - Image 1](https://m.media-amazon.com/images/I/81BWunCOpyL.jpg)
![Exaco BioStar 1500 Premium Cold Frame - Image 2](https://m.media-amazon.com/images/I/81ve1JKXScL.jpg)
![Exaco BioStar 1500 Premium Cold Frame - Image 3](https://m.media-amazon.com/images/I/81JjqbEE2kL.jpg)
![Exaco BioStar 1500 Premium Cold Frame - Image 4](https://m.media-amazon.com/images/I/81p9L12pXsL.jpg)
![Exaco BioStar 1500 Premium Cold Frame - Image 5](https://m.media-amazon.com/images/I/71PCQ1+UfOL.jpg)

## Questions & Answers

**Q: How much and what type of soil please? How far to the top of the container do you fill?**
A: You don't fill the Juwel cold frame with soil.  You can fix/secure the cold frame to flat ground or make a frame that the cold frame will sit on.  The frame can be buried or free standing on the ground.  If above the ground you can fill the framed area with top soil.  I raised one of my frames 6 inches and another 9 inches.  It is best not to let the soil level inside or outside of the Juwel frame have soil against the lexan double wall sides as moisture will infiltrate the space between the walls.

**Q: Can this product be used for organic gardening? Are there any concerns about chemicals from the components leaching into the soil?**
A: I would use it confidently in an organic garden. The components appear to mostly aluminium, an assortment of stiff (high-density?) poly ethylene or poly-propylene clamps & corner pieces and the poly-carbonate window pane. Being an organic chemist by training, I have fewer concerns about the materials in the kit than in what already is in the soil or gets absorbed continuously through the environment. May, however, not conform to a rigid definition of materials suitable for organic gardening.

**Q: Dimensions??**
A: Assembled Dimensions: 59"W x 32" D x 16" H in the front and 20" H in the back

**Q: wind proof to how much wind?**
A: The only time I every had a problem with wind was when I didn’t put the clips on they give you . The clips snap into the top and snap to the bottom when the top is down  and the notches on the clip secure it when it’s vented. My biggest complaint is putting it together with the metal corners they don’t always corporate. I prefer the smaller version of this that has heavy plastic corner pieces that snap into holes an secured with a clip

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    A well-engineered cold frame albeit an expensive one.
  

*by A***E on Reviewed in the United States on October 23, 2018*

I keep dwarf conifers and select alpines in pot culture and dabble in bonsai. I needed a solid overwintering shelter for my plants and decided to go commercial instead of building one. Another reviewer nicely addressed the home-built vs. commercial frames from a cost and effort perspective. The Juwel 1500 was clearly the best of the < $500 lot in my web search. It is well engineered and goes together in quick measure. Just remember to use the proper green corner brace in each corner during assembly: they are marked I (for H1 in the photos), II (for H2), III (for H3), and IIII (for H4) on the inner surface and that correlates to its proper corner. Stick to your assembly sequence and using the photos, note which panels you are using (A, B, etc.) to verify where each green corner brace is located and you'll be good to go.Here's how it works out, in assembly sequence order:Panels B and D are linked with III/H3Panels C and B are linked with IIII/H4Panels A and C are linked with II/H2Panels D and A are linked with I/H1It goes together quite quickly. A second person makes it easier but they are not mission critical if you're a hermit. The automatic window opener that comes with the frame is nicely made and easy to assemble, 3 steps and you're ready to drop the pane in place.There are solid green clips, 2 per pane, to keep the windows locked down in what is a very elegant simple solution.My frame is installed up against the north side of my rural New England house. I put hardware cloth underneath the frame and bent it up 3" all around the outside perimeter to keep mice and voles out. There are 4 anchors included with the frame kit consisting of a mount and a metal anchor rod. The mount snaps into the frame and the rod is driven though a hole in the mount.I first pack topsoil about 3” up the outsides.  I use a cedar mulch inside and again deeply around the perimeter to about 6”. Don't use sawdust or wood chips in your frame as they attract pests including fungi, termites, and carpenter ants. Make sure that the area around your frame is well drained so that water doesn't pool in there in heavy rain. A good snow year makes for a well functioning cold frame and happy plants.Overall, a great unit. I just ordered a second one.----Additional Comment, November 2019:I now have a full year of experience with this frame and just installed a third Juwel 1500. They are the cornerstone of my winter treatment of my dwarf and miniature container conifers. Very rugged and reliable. The hardware cloth basement installed as described above is mouseproof. I am in Zone 5a and during an extended cold spell last winter with temperatures to -18degF, the interior never dropped below +16degF. Superb. If that happens again this winter, I will no longer install warming mats since they never reached trigger temperature (+15degF).

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Excellent cold frame for starting or extending your growing season
  

*by C***L on Reviewed in the United States on April 22, 2017*

I was looking at an 8mm polycarbonate greenhouse anyway so it was a great chance to see the 8mm twin wall panels which will do a great job in heating that area for earlier growing or maintaining a mature plant over the winter.Some reviews indicated that the walls were thin/ flimsy for the 8mm panels but insulation properties are ideal for this cold frame. I'm using this cold frame in a raised bed and will plant peppers 3 weeks ahead of last frost date and look forward to its use throughout most of the year. When I installed in the bed, outside temp was 50 ish but inside was over 80 degrees F and need to vent or install the auto opener so you don't have to.Update 5/7/2017.  Heavy wind and have cold frame in raised bed. Item didn't move at all. Had windows closed and locked. So far pepper plants are doing very well. Going to buy another one for the fall growing season. We had a 39 degree F. night and inside temp was still in upper 50's. Still happy with my purchase.Update 11/1/2017. Acquired some plans on-line to build my own cold frame out of 2" wood. Had to order a 6mm twin wall polycarbonate plastic top for the lid. I'm not the most skilled wood worker as the wood cold frame doesn't have to be perfect, just allow protection from the elements, but took a lot of time to build it. However, after comparing the costs and materials to build this the Exaco 1500 cold frame is not a bad deal. 8mm poly offers good heat retention and light transmission and comes with an auto vent opener. The size fits my 6' by 3' raised beds and I put bags of leaves on the north side of the cold frame for extra protection from the wind.Haven't had these in the garden yet over the winter so we'll see, I suspect an old winter blanket over the cold frame will help with protection.Update: Winter 2017-2018- I live in Zone 5 weather so below zero and a good amount of snow. I planted some cold hearty crops this fall, mizuna, claytonia and mache and everything survived the winter. With daylight hours increasing to 10 hours plus, I now have new growth. These cold frames supported 8 inches of snow and ice and showed no signs of stress.These cold frames are very well-made and yes you could make it cheaper. But I figure, I purchased for $279 ( 10 year warranty) and 8 mm protection- You could harvest all year round in the correct climate. I plan on building a greenhouse in the summer and will use these in the winter, unheated to grow cold winter crops all winter. These will be put away in my growing zone once last frost date comes hopefully!Attached are pictures of mizuna, clayonia and mache that survived a very cold winter in zone 5A. I planted some spinach in the furrow that was open and it's growing nicely even through temps are in the teens at night. Outstanding season extender. The possibilities are endless in a cold area in the winter. If you have a greenhouse or high tunnel, you could use these for double cover and really get cold weather protection.Update: Winter 2018-2019-had the cold frame in one of my raised beds since the fall. Ground inside never froze and spinach survived the winter. Temps In Upstate NY were well below zero and snow pack helped insulate the cold frame. Snow storms of 14" plus never impacted the structure with the weight even with snow and ice.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Very nice product
  

*by D***K on Reviewed in the United States on November 17, 2023*

Easy to assemble. They work as expected. I was skeptical about the middle cover opening automatically if it was warm enough inside but sure enough they work perfectly. I have just gotten started with some cold crops, will see how they function through the New England winter.

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-01-22*