Quite often while reading informational material on one company or another, they will list how long they have been in the business of making what ever it is that they make. If this is relevant information then Emerson whole house electric fans are the most relevant of all.
This is because they have been in the business of making and selling electric motors and various devices that run off of them for well over a hundred years. In fact, it was so long ago that they got started, that it's a little up in the air as to the exact date that they began. 1890 or so?
As it stands today, Emerson is the largest fractional horsepower motor producer on the planet. So needless to say Emerson does fans. Even so, in spite of dominating the market there are some new home ventilation systems that are generating some interest.
So is the good old fashioned and straight forward whole house fan that effectively flushes out your homes are on way out? Will it eventually be replaced by more feature laden home vent systems that actually pump air in and then out at intervals for instance?
That it turns out is highly doubtful for several very sensible reasons. For instance, you just can't beat the ease of installation of Emerson whole house electric fans. It simply plugs into the top floor ceiling and blows directly into the attic. This, versus newer more complex systems that require tearing into walls to install duct-work.
Also it's very important not to be led astray by features on what was always meant to be pretty much a “one function” fan. You see, the whole house fan was developed to be a simple and "reliable" system for quickly and massively venting a home. Essentially for hot days and smokey kitchens.