I’m working on a job (cutting a passthrough in a very thick brick wall) where the dust load is spectacular, and a stone worker friend suggested an inline exhaust fan that I can duct outdoors. Anyone have any experience with these? Costs/brands?
Thanks in advance…
PaulB
Replies
Hooked up my own using an old furnace squirrel cage fan. Moves a lot of air and can connect AC ductwork to it to feed the air outside
Let's not confuse the issue with facts!
Have you considered a chain saw? You can rent it at United Rentals in West Haven or Milford. Maybe at Colony Hardware in New Haven, but I think they only sell. It is a wet chainsaw for masonry. Will cut through it like butter.
http://www.icsbestway.com/
You will spend an hour or 2 waterproofing the area and will need a laborer working a wet vac to suck up the water as you go. The cutting will take very little time - especially through brick.
As for fan, how close are you to a window?
We use an attic exhaust fan when sanding rooms. It is installed onto a piece of plywood which fits the opening of the window. The plywood MUST be tight to the window opening and the fan, otherwise the fan will draw the air through the holes/ gaps and not through the room. It works great.
You can also have a guy with a wet/ dry vac sucking the dust as it comes off the saw blade to get the bulk of the dust.
Frankie
There he goes—one of God's own prototypes—a high powered mutant of some kind never even considered for mass production. Too weird to live and too rare to die.
—Hunter S. Thompson
from Fear And Loathing In Las Vegas
Helper holding shopvac or shopvac somehow rigged up near saw. large square fan with a furnace filter zip tied to the intake side, set in a doorway.
What kind of saw are you using? no way to squirt water on it?
zak
Since this is a finished space, I was advised that the wet saw would be a nightmare. I do have a huge exhaust fan but too far from a window or door to be too effective and the amount of dust is way more than a shop vac can handle...
That sounds like the systems that I see telco using to ventalate manholes with the flexable ducts.
But I have no idea of what the generic name, brand or cost are.
I think they are Bill... Apparently the nomenclature is "enclosed space blower". I rented one this morning and will be trying it out tonight. I'm praying it works as well as my stone mason friend tells me. Last night was like walking on Mars...
PaulB