In 2012 I posted a web site to sell whole house fans in Australia. In 2015 I got my first order and needed a source for duct. I found CSR Edmonds (Now Bradley) and asked for a quote. The export sales manager, Alan Ramsay, called me to ask what I was doing. I told him I was making a rooftop fan for a customer.
Alan asked me to be his United States distributor and I opened https://EdmondsUSA.com . I signed on reps in 27 states.
In 2015 I met with James Shwe of MarokoShwe.com and I showed him the Edmonds hybrid rooftop. James was so impressed he immediately put Edmonds in his design for the Los Angeles Studio City Recreation Center Gymnasium.
Shortly after I learned that the Edmonds design needed improvement. I added a motor and propeller and created the Invisco Tornado.
Here are both –
The purpose of this web page is to show you why the new Invisco Tornado is so much better than any other rooftop made anywhere. Here is a graphical comparison. This higher performance is entirely due to the turbine top from Australia.
There are 4 sizes to choose from on 8-21-25 –
- EP400 is a 16 inch throat.
- EP500 is a 20 inch throat.
- EP600 is a 24
- EP 900 is a 36.
Back to the Studio City design – in 2016 James released his design to Los Angeles with 2 vendors for the rooftops – Edmonds in Australia and Invisco in California. When the Los Angeles engineers reviewed the drawings in 2021 they removed Edmonds leaving Invisco due to the higher performance.
Here is a graphic of the performance differences between the top 4 sources in the world.
COMPARE THE THREE ROOFTOP SUPPLIERS
HERE IS HOW TO BUY YOUR HIGH PERFORMANCE ROOFTOP FOR YOUR HOME OR BUSINESS
Price is $2960.00 https://invisco.fwscart.com/product/whole-house-fan-8005-cfm-for-rooftop-or-wall