In a head-to-head comparison, our customer selected the Eldridge Direct Drive Filtered Air Fans over options from a large, national competitor. We were able to recommend a solution that provided the customer with the required air flow performance at an …
Read MoreFans aren’t very effective at ventilating without moving propellers but what is the best option for your application? At Eldridge, we prefer to use direct drive fans for most general ventilation applications based on selling thousands of fans in our …
Read MorePreviously, in part one of this series, we determined how changes in humidity, temperature, and altitude can affect air density. We will conclude this two-part series by discussing the effects on fan performance caused by changes in air density. Effects on …
Read MoreAt Eldridge, we use ASHRAE Standard Air Conditions to rate the performance of our fans. Standard Air has a density of .075 pounds per cubic foot at the conditions of 70º Fahrenheit, sea level barometric pressure of 29.92 inches of …
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Solving tough ventilation problems is in Eldridge’s DNA. Finding innovative ways to help our customers has resulted in Eldridge having seven patented products. When our team looked at the traditional weather hoods used for roof and wall fans, we knew …
Read MoreLast month, we published an easy-to-use checklist to facilitate ordering a replacement fan or parts. Of course, the obvious question is knowing when a fan needs to be replaced. Sometimes accidents happen and you end up in an emergency situation with one …
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FAN NOISE – SOME SOUND BASICS Sound is a physical occurrence. Sound is also what we hear. Interestingly, “sound happens” whether or not anyone is around to actually hear it. Fortunately, sound is governed by natural laws so we can …
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If you’ve never worked with a fan curve graph before, it can look intimidating. But don’t fear—it’s actually very straightforward once you break it down. Being able to read a fan curve will allow you to choose the best fan …
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Back in the Dark Ages of 1976, before we all had computers sitting on our desks and when engineers still used slide rules, I came to work at Eldridge as a very young sales engineer. At that time, I was …
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