making a flowhood [merged]
Posted 28 February 2006 - 10:57 AM
Posted 28 February 2006 - 12:51 PM
this cost me a whopping $10...with new filters.
Posted 01 March 2006 - 08:55 PM
Posted 01 March 2006 - 10:20 PM
Posted 27 September 2006 - 03:33 PM
Posted 27 September 2006 - 07:03 PM
Posted 28 September 2006 - 01:24 AM
Posted 28 September 2006 - 03:22 AM
Posted 28 September 2006 - 07:01 AM
Synthesis II covers how to make a simple fumehood, but the other suggestions here are good to. And the old rhodium archives have some still-working links about building a vacuum pump (no idea what you're cooking, but a water aspirator usually won't cut it).
Posted 28 September 2006 - 02:00 PM
Posted 28 September 2006 - 03:14 PM
Posted 28 September 2006 - 03:29 PM
Posted 30 September 2006 - 08:05 AM
I don't know if you've seen this, but Buckaroo's got a good "ghetto" design http://mycotopia.net...read.php?t=6707
Darn those are great prices, wish I had come across that link before I ordered my 24x24x6...it cost me lil over $200 at a local heating n cooling shop.
Here is a great link I got from AntiC which gives details/pictorial of building a flowhood from scratch:
heres what I did with a HEPA
ya might find it helpful
it shows a way to measure static pressure also
the rating on the filter about WG means that anywhere up to that measurement the filter will hold its filtration percentage rating. If you go over that pressure you could damage the filter and blow contams right through it.
BUT thankfully the fans from residential a/c equipment that we comonly use are not capable of developing that much static pressure without cavitating. They typicaly develop about .5 inches WG.
It takes a LARGE fan to push an inch of static.
Posted 30 September 2006 - 08:49 AM