External Open AIR Valve Pro

What is it?

The External Open AIR Valve is an open-source, Home Assistant–compatible valve designed for 125mm || 160mm || 180mm  air duct / ventilation systems.

It lets you control airflow within your ventilation system, directing it to specific rooms as needed. This helps optimise energy use and improve comfort in your home.

Why Choose the Open AIR Valve Pro?

The External Open AIR Valve was created to solve a real-world problem: during showers, the ventilation system would pull warm air from the living room, causing the thermostat to reheat the room unnecessarily. This wasted energy and added environmental impact.

With the External Open AIR Valve Pro, you can shut off the living room vent and redirect airflow where it’s needed. And because it integrates with Home Assistant, the behaviour can be fully automated to fit your lifestyle.

Important Notes:

Bring your own:

1. A 125||160||180 mm flexible/hard hose/duct that fits exactly over the outside of the valve housing.
2. A hose clamp that fits this hose.
3. The proper materials to mount the housing to the wall (screws and wall plugs).
4. A 12 USB-C Adapter or a 12V power Supply. Terminal plug is provided with the valve

It’s a deliberate choice not to include the 12V power supply. Most tweakers probably already have a collection of power adapters they’ve kept for years, now’s the time to put one to good use! If you don’t have one, you can purchase a power supply here: Click

License: 

This design is released under a : CERN-OHL-S license.
More information about this license can be found: Here.

Warranty: 3 Years. 

More information about our warranty can be found: Here.

Source Files:

Can be found: here :TODO

Can be found: here : TODO