Practical Eco Friendly / Sustainable Options

Helen · Nov 08, 2007 12:32 pm

Kezza - I just looked up the E-vents and they look very interesting.

Probably a stupid question but I don't quite understand the science of it all - would they let warm air out in winter? I know there's been a discussion on here previously about being able to close off whirly-birds to prevent this.

Cheers,
Helen

Cookiemonster · Nov 08, 2007 1:02 pm

Casa2

Cookiemonster

Great explanation Casa!
Very clear and concise.

Thanks Cookiemonster. And I did it without being sarcastic or facetious!

Pebble · Nov 08, 2007 3:17 pm

I found this website courtesy of this forum. It's much more than a crash course on building an enviro friendly home, amazing some of the detailed explanations I found. Of course I need much more time to give it all a thorough read... it even outlines solar passive strategies that you would use in the different climatic zones!

I'm sure people reading this thread will benefit!

http://www.greenhouse.gov.au/yourhome/technical/fs00.htm

Jet79 · Nov 08, 2007 7:11 pm

Thanks Casa, after that explanation I feel a bit stupid with the way I put it. At least now I can act all knowledgeable to our builder. :wink:

I love this website, builders really take a girl seriously when she knows what she's talking about.

Jet

kristofw · Nov 09, 2007 10:41 am

Quote:

I don't quite understand the science of it all - would they let warm air out in winter? I know there's been a discussion on here previously about being able to close off whirly-birds to prevent this.

They're thermostatically controlled to open if mercury goes above 35C. I was advised to put at least 2 on the roof of my future house. Here's the link to the description:
http://www.mbrsheet.com.au/eco_ventilation.htm

Chris

Yak_Chat · Nov 09, 2007 6:54 pm

Quote:

The heat transfer ideas are interesting and it would be good to hear more about those. Re from roof space or perhaps top storey/bottom storey.

There are a few aircon companies in SA now making this as a extra feature of their evap systems - they filter the ceiling air and pump it via the normal ducts into the house in winter, and it is also and evap ac in summer.

re top floor re-circ - similar thing - I'm going to install a duct from the ceiling of my upstairs section to exit near a tomble wall downstairs beside the fireplace to utlise my hot upstairs air in winter for a good purpose.

But you also need to be aware of what smells you may be transfering downstairs as well

So make sure the air intake is not beside the "you know what" :shock:

Steve

Helen · Nov 11, 2007 4:15 pm

Thanks Chris. I've emailed the company for more information on the eco ventilation. I just gave our plumber some info on the e-vent but this eco ventilator looks good.

Cheers,
Helen