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big ass fans1/7
looking at one of these for the new place. found one used locally to us, but wonder how they perform in a dusty environment (and in kicking up dust).
We bought two used 18' fans. Very capable of churning up dust and paperwork if you get above 60% on speed range.
thanks for your reply.
do you run them in reverse in the winter time? for us, a lot of heat resides at the top of our building (20' ceilings), making it expensive to heat the lower part that we occupy. any realized costs savings associated with running the fans in reverse?
what is the size of your shop? i was thinking about one fan for 7000 sf.
I have a 16' Entrematic HVLS fan (Big Ass competitor) and could not imagine being without it. Well worth the $4500 cost (self install, very easy). Space is 6000 sq ft and the fan is centered over the 4000 sq ft shop area. I have a Cambridge thru the wall heater and the fan evenly distributes the heat through the entire building. I don't reverse the fan because it distributes the heat so well. The building is well insulated.
Plant is 95,000 sq ft.
We have a lot going on. Our shop space is 48,000. We have two Cambridge Direct Fired Furnaces. 750K BTU each. They pull in 100% outside air and have no vent, very efficient. They are supposed to not allow the air to stratify. Our dust collector returns to the building directly through the short end of the rectangular floor space. Our ceilings are over 20'. I find it amazing that there is no stratification of the air. It is around 1 degree warmer by the ceiling. I don't know if it is the furnaces or the collector blowing downs the center of the shop but I like it. In our old building it was HOT by the ceiling. We had standard unit heaters.
We then have 2 large fans high on the wall at the end of the building. I believe they are a 3hp and a 5hp belt drive, 48" and 54" respectively.