Established in 1993, China Goodjia kitchenware Co., Ltd. is a specialized window opener manufacturer and wholesale of kitchenware, cookware, tableware, dinnerware and small household appliances. Our window openers meet GS, CE, ITS and UL approval standards. At present, we are in good business relationship with Tchibo, Aldi, Karstadt Quelle and so on.

Juliana Greenhouses JU122 With the Juliana automatic window openers you can be sure of an even temperature in your greenhouse day and night. To be continuously controlled from 62-73 F (17-23 C). Features: -For use with glass-panelled greenhouses -Solar-powered opener -Allows thermostatic control of roof vents -Made in Denmark -Note: Take care to remove the cylinder during periods with frost as the openers may try to open the windows when the sun warms up the cylinders. If the windows are frozen, this may cause the cylinders to burst due to their demand for getting rid of their surplus energy. Helpful Greenhouse Advice About Juliana Greenhouses Juliana has specialized in hobby greenhouses since its founding in 1963. Today, Juliana is the leading European manufacturer of hobby greenhouses, exporting products to 20 countries worldwide. No matter what size greenhouse is right for you and your garden, Juliana greenhouses offer exceptional quality for years of gardening pleasure!

The JempVent Automatic Window Vent Opener works with all cold frame and greenhouse models. Opener ensures fully automatic opening and closing of your louver or window according to changes in temperature. • Ideal for greenhouses, shops, barns, or anywhere that additional airflow is needed. • Solar-powered louver opener automatically opens and closes shutters as the temperature changes. • Operating range is easily adjustable. The opener can be adjusted to automatically open at a temperature ranging from 60° F to 77° F. • It is recommended that the opener be removed during the winter months. • Does not require any electricity to function, it works by means of solar energy. • Aluminum and stainless steel construction. This is designed to be used for smaller window vents or cold frames Replacement cylinder is available for the models. Juliana Greenhouses JU122 With the Juliana automatic window openers you can be sure of an even temperature in your greenhouse day and night. To be continuously controlled from 62-73 F (17-23 C).