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In stock
External Open AIR Valve
€94,95 EUR
What is it?
The External Open AIR Valve is an open-source, Home Assistant–compatible valve designed for 125mm 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?
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, 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:
- A 125 mm flexible/hard hose/duct that fits exactly over the outside of the valve housing.
- A hose clamp that fits this hose.
- The proper materials to mount the housing to the wall (screws and wall plugs).
- A 12 V AC/DC adapter with a 5.5 × 2.1 mm jack, 12 V > 200 mA, centre positive!
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
The power supply connected to the valve is designed to be daisy-chained. This means you only need a single AC/DC adapter for multiple valves, provided they are placed close to each other. Each valve requires about 200mA. With the power supply mentioned above, you can therefore connect up to 7 valves.
If you order multiple valves and external housings, you’ll receive the coupling connectors for free.
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.