Here’s a new model I have been working on featuring a vertical Blowbox cooling engine housed in a 20″ roll-around case. This arrangement uses gravity as well as blowers to more effectively expel condensation. Cooling is identical to the Blowbox TWIN – its only advantage is being less likely to suffer from airflow interruption due to condensation clogging in extremely hot, humid environments.
Testing my ice chest air conditioner on a hot, humid day over a period of 7 hours.
Notes: The cooler was holding 35 lbs of ice and one gallon of water.
The actual outdoor temperature in the shade according to my infrared thermometer was 105 degrees (temp sensor under intake grill was in direct sun for a period, indicating 111). Humidity was 70% average.
The cooler was not moved or opened during the test. The camera was removed from the tripod and brought inside between takes.
But does spending twice as much money equate to dramatically better performance?
At least as far as the radiators go, not really. My original design’s lightweight and affordable components cool nearly the same for many hundreds of dollars less.
Nevertheless, this cooler incorporates some significant improvements and my Frankencooler Build Plans have been updated to reflect some of these changes.
- Patent pending design
- Totally self-contained and portable – no external power needed
- 18-volt lithium-ion battery w/state-of-charge indicator
- Two flexible cold air ducts
- Three individual water to air heat exchangers
- Twin high-pressure fans
- Infinitely variable fan speed control
- Marine pump – underdriven for durability and power savings
- Cooling ice and water insulated from incoming air for maximum cooling duration
- Coleman cooler features wheels, pull handle and drain valve
- Average run time at optimum 50% fan speed: 1.5 – 1.75 hrs.
- 30º – 55° temperature differential (outgoing to incoming air)
- Additional batteries available for under $40
- Hideous looks, awesome performance – proven in the desert by Arizona Cardinals tailgaters
Build your own Frankencooler – plans and parts are now available HERE