Info on envirofans wanted please.

[PinkPrincess]

Hi everyone

Sorry to intrude on this blokey site but I need some help, please! I need to have a ventilation system put into my sub-floor area. The envirofan seems the best option. Do you know where to buy them? How much they are? What should be a reasonable cost for having one installed?

Thanks.

[juan]

Give Christine Daniels a call on 0421 984 202 or http://www.envirofan.com.au/order.html

[SilentButDeadly]

Interesting......a water powered extractor fan.......looked great until I found the bit about needing 12 L/min to run.

That's a bit trickey when 'regulations' (eg BASIX) these days require WELS rated low flow showerheads to be fitted in new homes and many reno's....the three star Faucet brand showerhaed that I am about to install has a max flow of 7.5 L/min.....that stuffs that!!

[Smurf]

In case you aren't aware, the way this works is using a small turbine to drive the fan.

It's essentially the same principle as a hydro-electric scheme only on a much smaller scale. Water pressure from the water flowing to the shower turns the turbine and hence the fan just like water flowing from a dam turns a turbine and attached alternator to generate electricity.

Very proven technology in principle. Tasmania has generated virtually all its electricity using hydro power since the 1890's and it wasn't the first place to use hydro power (though Tas has done it on a very large scale per head of population compared to most which use it only to supplement coal etc). Various mines, flour mills etc worldwide used water wheels long before that to directly power machinery.

So nothing new about hydro power as a technolgy, just a different application using it to run a fan in the bathroom.

Only downside I can see is that it will stop as soon as the shower is turned off. This may leave a bit of residual steam to clear if it's not installed close enough to the shower.

Electric fans don't use much power but this one uses none so it's a saving.

(Technically it is reliant on electricity since in most cases some is used to get water to the house, but it's not using any extra power since the water is used in the shower anyway).