Folks are designing outdoor draught systems for patios. Since this is an outdoor application, there is a hesitation to place the refrigeration components outside. Preferably, they designed the system using commercial remote glycol system components and then place a
back bar unit in a protected area such as a garage. This back bar unit serves as your keg storage and then the beer is remoted via a refrigerated trunk line to the dispensing tower mounted wherever you desire.
Most certainly this design hinges on one huge word - budget!