Interfacing Komfovent C6 in Home Assistant

Interfacing Komfovent C6 in Home Assistant

We recently got balanced ventilation installed, and discovered that our ventilation unit has Modbus TCP/IP support. I even found a thread on the Home Assistant community talking about interfacing the C6 controller, which our unit has, into Home Assistant 😃

Here is my implementation 👇

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Getting balanced ventilation installed

Getting balanced ventilation installed

Our house was first built as a log cabin in 1890, then extended in the 1950s, and again extended and completely renovated in 2000. It’s well insulated, and has no drafts — it seems to be relatively airtight.

Great for keeping the heat in, not so great for the air quality. Add the fact that we didn’t have a single fresh air vent, only those tiny trickle vents above the windows. What you are left with is a house with bad air quality.

So we installed a balanced ventilation system 🙂

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Home office ventilation — controlled by CO₂ level

Home office ventilation — controlled by CO₂ level

I recently watched Jeff Gerling’s video on CO₂ levels, and how to monitor it. My home office is also in the basement, with no windows. So I paid attention to the air quality when setting up down here.

In addition to monitoring the CO₂ level, I’m also automatically ventilating the space when the air quality gets too bad.

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My new home office

My new home office

In our new house there is an 20 m² basement, it consists of two rooms — both 10 m². I have turned the inner room into my new home office/server room, with my electronics lab and homelab.

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Ventilation and fume extraction rebuild

Ventilation and fume extraction rebuild
Redoing the exhaust ventilation, for the heat generated by the homelab. And installing a proper fume extraction system for my electronics lab.
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