The blankets are for more of a festival outdoor event. You soak them in, which the gel absorbs and then freeze. So when it thaws you will get a bit of a mess. The saddles are the way to go. The install is very easy, just remember to turn off the glycol system you are tapping into before you cut, and if the reservoire is higher then where you are cutting be prepared to kink the hose to stop the flow.
CBO "Chief Brewing Officer" / Zymurgist
Bluegrass Brewing Co
636 East Main St