I have had my HRV installed for 2 years now, I love it! I used to be like the lady on the ad that spent and hour every morning with the squegee and towel cleaning all the water off my windows! I used to get 1/2 a teacup of water off my sons window and now I get an extra hours sleep in, because I've never wiped a window since! And the damp musky smell in my bathroom, now gone! Thanks HRV!