[Greenbuilding] Arnie's natural ventilation system

[George J. Nesbitt]

The Sterling is the most energy efficient ERV or HRV? on the market.
It has some pretty cool features, they even stole one of my ideas.
Well, ok, they came out with the product before I had my idea.
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.
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!).


Keith Winston wrote:

>There is a night-cooling mode on the Stirling Technologies Ultimate Air
>
>Recoupaerator ERV. You can find out more here:
>
>http://www.ultimateair.com/Ultimate_Air/recoupaerator_intro.aspx
>
>That way, when you're not able to use night-time cooling, you have an 
>ERV doing it's thing.
>
>Keith
>
>
>
>Bob Irving wrote:
> > Dear list,
> >
> > In my present quest for academic papers on natural ventilation, I've
> > found a paper written for the State of California on micro-processor
> > control of whole house ventilation systems - to monitor outdoor
> > temperatures, compare with internal, and turn on a fan sucking cool,
> > night air in to provide over night cooling to reduce the day-time use
> > of aircon. It was written in 2002-03. At the time, they said that
> > there was no kit available to do this cheaply (or at all) Has anyone
> > any idea if it has been put on the market?
> >
> > TIA
> > Bob
> >
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