Yup, I turned the controller to 4 degree set point and put a fan in front of the unit. Haven't blown a fuse for a week or so. There's a thread on RC where some guys changed the size of the plumbing fittings going in and out, which increased the flow rate a lot, and prevented any fuses blowing. So, I can add a larger pump, or change the fittings. Although, I find that when I set the thing to a 2 dgree swing, my tank sat at 81.5 degrees F. Now with the 4 degree swing, my tank sits at 81.5 F.
