whoever thought those rings were a good idea...... should be taken out back and beaten with a hose
Most of the manufacturers still think that crimp rings are a good idea. (Except for Rheem, york, Goodman/Amana)
General public's attitude towards our energy predicament:"I reject the reality of finite resource depletion and substitute it with my own; energy is infinite, we just need an alternative storage medium to run the cars on. The economy can grow indefinitely - we just need to "green" everything! Technology is energy! Peak what?"