[Greenbuilding] Arnie's natural ventilation system

[Corwyn]

On Aug 6, 2006, at 21:31, George J. Nesbitt wrote:
>
> It is not clear to me if in cooling mode if the heat exchanger is 
> bypassed, you wouldn't want to warm the incoming air.

I would hope not.  The incoming air in cooling mode is cooled not 
warmed by the outgoing air.  Just consider inside and outside switched 
when winter changes to summer.

> But it is not the most efficient way to get ventilation cooling.
> On high speed it uses 200W to get 200 cfm of outside air.
> An air handler with a ECM and a Smartvent can move 400 cfm for only 
> 60-80W (or less!).

It should also be cooling for those 200W.

Thank You Kindly,

Corwyn