Thread: DIY ventilation heat exchanger
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Old 03-04-10, 12:36 PM   #19
Daox
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Originally Posted by Piwoslaw View Post
I think this forum needs a Thanks button!



I recently read that an airflow speed of at least 5m/s in ventilation ducts creates unacceptable noise. This may be the speed at which laminar turns to turbulent flow.
I'd give you a thanks, but... We'll get on it. Its a nice feature.


Thanks for that tidbit of info too!
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