*Last Updated: April 2024

How To Build & Install a Greenhouse Automatic Vent Opener


For your greenhouse to facilitate the proper growth of plants, it has to operate within a specific temperature range. Greenhouse vents are beneficial for a greenhouse.

These vents help to regulate the temperature inside of the greenhouse and make sure the greenhouse stays nice and cool (Source).

For this to happen, it must have some automatic vent openers to open and close in such a way as to maintain the interior temperatures within the set parameters.

Of course, these openers have to be retrofitted to cold frame greenhouses or polycarbonate greenhouses given that they are rarely prebuilt. 

Our step-by-step discussions below will guide you through the procedures to get one of these auto vent openers built and installed.


How To Install a Greenhouse Automatic Vent Opener

Tools and materials required

  1. Measuring tape
  2. Sharp-pointed objects
  3. Drilling or boring machine
  4. Clamp
  5. Screws
  6. Screwdrivers
  7. Spanner or wrench

Step-by-step procedures

greenhouse (2)

Step 1: Identify the most suitable auto vent opener

Start it out by identifying the most suitable auto roof vent opener. This is what will open and close as need be to maintain the interior temperatures of the greenhouses at the desirable levels. The opener you opt for has to be able to fit the spaces smoothly not to mention being tough enough to bear the weights of the glass panes.

Step 2: Drill the holes strategically

Follow this by drilling holes onto the glass panes. Use a drilling or boring machine to tackle this chore. You will first and foremost have to mark out the exact spots where you are to drill the holes. Use a measuring tape and some sharp-pointed objects to do this job.

Step 3: Slot the auto vent opener into the holes

Now slot the auto vent openers into the holes you have drilled. Be sure that they fit into the holes as nearly as can be. That is to minimize fidgeting and the associated damages that potentially come along. As a general rule, the angle bracket has to be attached to the main body of the machine in line with the manufacturer’s instructions.

Step 4: Tighten and adjust the opener appropriately

Clamp the auto vent opener firmly in place. Move ahead now to tighten and adjust the opener appropriately. You have to do this in such a manner as to be capable of opening the opener by rotating its main tube automatically if need be.

Depending on the make of your opener, you may have to use a screwdriver or a wrench to do the job. Adjust the vent openers to commence opening at around 65-75°. Fix the black strap that is part of the opener to aid with mitigating the possible wind damages.

On the whole, the tighter the adjusting screw, the more prompt the vent will open whenever the temperature shall rise. It is necessary hence to make the same as tight as can be.

Step 5: Test the system

As a standard practice, it is good to test the system to ascertain whether indeed it is up to standard or not. If yours is an automatic vent, place a thermometer in the greenhouse and take note of how it behaves as the temperature readings get to that mark. For the manual openers, you may try and open and close them repeatedly to see how it works.

Step 6: Lay the final touches

Just if there are any issues that may impede the proper functioning of the vent opener, this is the stage to remedy the same. This may take the forms of tightening the joints, fixing some parts therein, or even lubricating the moving parts, and so on.

Summing Up

Practice, of course, makes perfect. This means you may have to do this for a longer time to have it right. Perhaps one sure way of going about it is to carry out mock installations. Enlist the support of your friends also to aid you with mastering the basics of the procedures and gaining the necessary in-depth expertise.

The benefits of a greenhouse vent opener make the initial investment worth it in the long run. In greenhouses, ventilation is key.

Greenhouses need a suitable and sufficient amount of ventilation to maintain a good environment. There are many different types of greenhouses that operate with different ventilation methods. But if it doesn’t have one pre-installed, you’ll need to get an aftermarket option and get it up running to keep your greenhouse properly ventilated automatically!

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