Product overview
Evergreen Greenhouse / Glasshouse Auto-Opening Vent.
Top quality product backed by our 12 month warranty. Thermostat mechanism, automatically opens and closes the vent at a set temperature.
Its automatic operation adjusts the ventilation as temperature changes, allowing for optimal air flow in your greenhouse. No more worrying about your flowers and plants, even when you're away.
There's no need for troublesome cables or regular battery replacements.
- Starts to open at 18-25°C
- Fully open at 35°C and above
- Maximum extension of 45cm
- Maximum open weight 7kg
Similar models from other suppliers come in at $130+
Weight: 1kg
Packed carton size: 8.5cm x 5cm x 28.5cm
Average thickness of aluminium profiles: at least 1.5mm
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Questions and answers
Customer reviews
Overall rating
4.7 out of 5 stars from 49 reviewsrny
16 days ago
2021-01-11T05:28:03+00:00Exactly what I needed, and easy to install.
Does the trick
2 months ago
2020-11-18T19:24:26+00:00Bit hard to install on the evergreen greenhouse.
Great addition to the greenhouse
2 months ago
2020-11-18T04:14:08+00:00The opener works a treat....definitely a must to get with the greenhouse.
Great product
3 months ago
2020-11-10T21:48:24+00:00A must for all green houses. Easy to fit. No more worries about venting and over cooking the plants. Highly recommended.
very good product
3 months ago
2020-11-09T23:34:23+00:00Had first one for 4 years. Fitted new one and working well. Recommend this product
Automatic vent opener
3 months ago
2020-10-30T20:10:27+00:00Works very well good buy.
Must have.. Auto Opener
3 months ago
2020-10-30T09:47:19+00:00If you have a greenhouse these Auto Opener are a 'must have'You dont have to worry about opening and shutting those vent windows by hand, these open and close by temperature to vent the Greenhouse.
Window opener
4 months ago
2020-09-28T08:41:32+00:00Does exactly what it says and without it our plants would have died multiple times already.
Evergreen Greenhouse Automatic Vent Opener
4 months ago
2020-09-17T20:39:56+00:00These are amazing. Open and close and stop greenhouse from over heating.
Very good
6 months ago
2020-07-26T00:21:56+00:00Good
Auto vent opener
7 months ago
2020-06-19T22:49:15+00:00Works well, and reasonably easy to fit to green house.
Auto vent opener
9 months ago
2020-04-28T02:12:55+00:00Opens and closes as designed
Works well
10 months ago
2020-04-09T03:31:57+00:00Good product works well, however the instructions are pretty bad so it took a while for me to figure out how to install properly. With better instructions I would give a 5 star rating.
Auto vent
10 months ago
2020-04-01T20:10:54+00:00Great product, Just connect it up and walk away.
auto vent opener
10 months ago
2020-04-01T17:49:17+00:00made it harder for myself by installing the normal opener first = instructions difficult to understand but it works great
Excellent
about 1 year ago
2019-12-01T22:16:41+00:00Does what it said it would.
Evergreen auto vent opener
about 1 year ago
2019-11-20T19:44:02+00:00Works great, happy with purchase and recommend it
Vent Opener
about 1 year ago
2019-07-05T09:30:55+00:00Found them to be fairly useless.
Evergreen Greenhouse Automatic Vent Opener
about 1 year ago
2019-05-25T21:39:39+00:00Installed and operating ideally
vent opener
about 1 year ago
2019-05-10T20:34:50+00:00it works fine easy to install i put 2 in my green house.
Very happy
about 1 year ago
2019-03-07T17:31:19+00:00Works incredibly well even on our very windy section. I used nuts and bolts to secure it to the glasshouse instead of the screws supplied in the kit. I would certainly purchase another if I needed it
Evergreen Greenhouse Automatic Vent Opener
about 1 year ago
2019-02-16T14:25:41+00:00Easy to install and work very well.
Evergreen Greenhouse Automatic Vent Opener
over 2 years ago
2019-01-08T15:59:56+00:00Great unit easy to install and works perfectly
Excellent product
over 2 years ago
2019-01-03T09:04:28+00:00This automatic vent opener is a excellent product and working as advertised. Recommend for everyone.
brilliant product
over 2 years ago
2018-12-21T13:13:59+00:00have installed two of these on my greenhouse, absolutely awesome system & Trade Tested were great with support, when I had a minor issue , thanks Guy's.
Greenhouse window opener
over 2 years ago
2018-11-28T06:48:12+00:00Great product, works perfectly. I bought 4 to use in my custom built glasshouse. I had to make a custom bracket to hold the opener, easy though, and works a treat
Evergreen Greenhouse Automatic Vent Opener
over 2 years ago
2018-11-20T13:59:10+00:00Won at ( Trademe ) auction for a good price, totally stoked with the installed product A+++
Auto vent opener
over 2 years ago
2018-08-01T21:49:00+00:00Working well.
Automatic Vent Opener
over 2 years ago
2018-05-16T12:16:11+00:00The instructions were a bit confusing but after fitting it as I felt it should be, the opener works superbly. Reccomended
Automatic vent opener
over 2 years ago
2018-04-10T20:39:49+00:00Good product but smell way to override with conventional handle would be good.
Great Product works well
over 2 years ago
2018-03-27T09:13:43+00:00Great product, works very well.
Excellent product
over 3 years ago
2017-12-06T07:12:12+00:00works exactly as I hoped. Fully closed at 20 degrees C and fully open over 30. A little bit fiddly to install. Don't use a high speed drill to drill out the rivets. A slower speed battery drill with a 4mm bit is much better. Use rivets to fit the adjustor to the window rather than the self tappers supplied as they are too long. The other end is easy just using the two captive bolts from the manual system. Adjustor screws in or out to adjust but I did have to screw in to the limit. Check at various temperatures and don't forget to remove the cotter pin.
Greenhouse Vent Opener
over 3 years ago
2017-12-05T13:15:50+00:00Great!!! A bit fiddly to install but so worth it. Wish we'd added them when we bought the greenhouse a few years back.
Auto window opener
over 3 years ago
2017-11-21T11:16:35+00:00Cleaver little item that works well
glasshouse automatic vent
over 3 years ago
2017-11-16T12:07:11+00:00great product.
auto vent openers
over 3 years ago
2017-11-04T06:28:23+00:00the auto vent openers are great just fit them and walk away.
excellent product
over 3 years ago
2017-11-03T10:18:42+00:00This auto opener is sturdy and easy to install. Good value and a game changer for the green house.
Save your plants
over 3 years ago
2017-10-29T13:53:38+00:00A great device, well worth the cost. Relatively simple to install. You never forget to open your vents again.
Well worth it!
over 3 years ago
2017-09-26T16:30:06+00:00A simple and very easy to install device that works fantastically. Really nice to buy something that performs just as advertised.
Evergreen Greenhouse Auto vent opener
over 3 years ago
2017-06-12T15:17:19+00:00Great product, highly recommend.
Evergreen Greenhouse Automatic Vent Opener
over 3 years ago
2017-05-10T09:42:09+00:00Working really well, saves having to remember to open and close. Would definitely recommend to a friend.
Does a great job!
over 4 years ago
2016-11-11T13:56:27+00:00Fitted and working, no problems.
Works great
over 4 years ago
2016-11-09T20:18:42+00:00I would definitely buy one again
Trouble free
over 4 years ago
2016-11-08T19:15:33+00:00These are a great addition to my hot house, trouble free and reliable
inituitive design
over 4 years ago
2016-03-07T12:50:04+00:00Excellent product that worked well on my new greenhouse.
Must Have!
over 4 years ago
2016-03-04T11:20:08+00:00These are simply the best you really need one for each window.
Work really well
over 5 years ago
2015-11-16T13:31:31+00:00Had two operating for the last two seasons that was my reason for three more
Venting
over 5 years ago
2015-10-14T05:38:27+00:00Installed auto vent when I built the greenhouse. The unit did not fit right out of the box I had to make some bits to mount it so it can close properly, but once on it works very well, well worth it
Simple and brilliant
over 5 years ago
2015-10-08T13:04:04+00:00Best investment i have made, saves burning a lot of plants.Very reliable too.
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