I have several Tripplite voltage regulators, that I was intending to use with my air conditioners in the summer. Also I was intending to use one with my new hi-efficiency Whirlpool washing machine. Since I don't have a good idea of how VRs work, if I bump up the voltage with the VR when I have a mains drop in voltage, what do I lose? I know there aint no such thing as a free lunch. My ac's are 15 amp units, and the VRs are 15 amp, and I have 1 VR that is 20 amp that I was going to use with my washing machine, although it too is a 15 amp machine.