JuwelCold Frame Opener, Automatic, Black, Stainless Steel, 17 inches

Just bought a couple of these. They work great. I'm using one with a light plastic cold frame top and another with an old wood frame plexiglass top that is quite heavy. Installation on the cold frame is a little bit a hassle and the provided screws are limited to thin material, so you will either have to rummage through your can of old nuts and bolts (which is what I did to find what I needed) or measure the length you need and get it from a hardware store. You can't blame the manufacturer for this since every cold frame requires different hardware.You can EASILY detach the opener in order to lift the cold frame cover. The bottom attachment arm can be removed and reattached by squeezing the arms together.As others have stated, the directions are not helpful and they do not explain the design and function of this nifty opener very well. But even I could figure it out and mechanically this gadget is outstanding.

I attached 2 of these to my new Juwel Cold Frame 1000. Be advised that you will need to drill 4 holes into your cold frame to mount the arm.It works great! It does indeed raise on warmer days, and raise more the warmer it is. Installation was easy, although the directions were not particularly clear. However, once through the annoyance of installion it's working well. It's also easy to partially detach the arm in order to open the cold frame to plant or water inside.

This auto-arm is a godsend as it opens up the cold frame automatically when the temp is warm enough! Saves a lot of running out to the garden to check on the frame!

It took a while to figure out the best way to mount this because I didn't want to drill thru the plastic as shown. All I needed was a metal tee from the hardware and than used all the parts as supplied and mounted every thing on the frame. It works perfectly.

I am a somewhat haphazard gardener but with my Jewel cold frame and the automatic opener, my shortcomings do not matter. Whenever the temperature gets high enough to cook my seedlings on a bright sunny day,up pops the opener. This is the second one I have had, the other on an improvised sunbox- a simple wood frame and old window, and that works perfectly too. I would not consider a cold frame without an automatic opener!

This opener works like a charm! You don't have to worry about too much heat inside. It does the openingffor you. GREAT!

I have had my cold frame lid lifter for three seasons now and it had worked well and reliably. It was simple to install and adjust. It must be taken in over the freezing winter.

I bought this with the idea of using it on my custom wood greenhouse. I had to modify the mounting of it but in the end it has worked fine. The instructions are in german, and the pictures are not that great.

Der Automat funktioniert super, aber nur beim Frühbeetkasten, ansonsten stimmt der Montagewinkel nicht.

Working fine on my self made cold frame. I did'nt modified the temperature setting but it does the job. In France the price is too expensive for this device.

der automat ist sehr gut funktioniert einwandfrei,hab diesen automat für mein frühbeet und glashaus im einsatz,der preis ist in ordnung und die lieferung extrem schnell.

Sehr zufrieden

Ich nutze den Fensteröffner für das Frühbeet unserer Schildkröten. Er ist stabil und funktioniert einwandfrei. Die Montage, insbesondere die Stelle, an der man den Fensteröffner anbringt, sollte man gut planen, ist aber prinzipiell nicht schwer. Praktisch wäre es, wenn man ihn auch einfach wieder aushängen könnte, so dass die Kkapoe wieder ganz öffnet. Das geht meines Wissens nicht, ohne alles wieder abzuschrauben.Auch der Preis ist ziemlich hoch.