I’ve run out of room in my garage. A big part of this problem are the Frankencoolers clogging the shelves – large coolers take a lot of real estate. This led me to come up with a compact, portable device that could be paired with anything from a small, soft-sided cooler to the largest hard-sided ice chest providing all day/all night cooling. After numerous prototypes, countless hours in a sweltering garage, and $$$$ spent, I call the result ‘Blowbox,’ mainly because I couldn’t think of anything better.
I took everything that makes the Frankencooler design so effective – the best 200 CFM blower available, multiple high-quality heat exchangers, variable speed digital motor controller, absolute segregation of air and ice/water – and incorporated it into the smallest package I could. This unit plugs into a separate low-amp marine pump that can be placed in any container capable of holding ice/water. I use my BB with several different sized soft-sided coolers, depending on how long I need cooling. The Blowbox and my largest soft-sided cooler combined take only a foot of shelf space when not in use.
This design is powered by a 10′ 12V power plug for hours of operation from any car/plane/boat power socket, and is also power cell ready, accommodating our 4.6 Ah Bioenno Power lithium iron phosphate power cell in its internal tray for 1.5 – 2 hours of operation anywhere, or remove the tray and you have room for our massive 12 Ah power cell, providing over 6 hours of off-the-grid cooling when paired with a sufficient amount of ice.
Speaking of more ice, the Blowbox can also be used with any hard-sided cooler just by drilling two small holes for the pump tubes and small power plug to pass through. A couple of inexpensive plastic plugs reseals the cooler for non-Blowbox duties.
I fabricate several of the key components that make this patent-pending design possible, and because they are not available anywhere, plans come only with our Blowbox Component Package, which will be available very soon on this site. This package is our most complete – requiring only a few inexpensive supplies from Home Depot/Lowes to complete.
Oh yeah, it works awesome.
