This is the next area I wanted to work with before it really gets hot here between Sarasota and Ft. Myers. Since I am on the deaf side of hearing the high speed may be something I could tolerate. How are you controlling the temps at which the fan operates? Have you heard of the thermostat having a few holes drilled so coolant passes before the T-stat spring begins to open?
I have noticed the difference when the fan needle(yeah, a lame measurement) stays at 9AM or lower compared to it going past that point. THX