I’m fairly handy but don’t even know where to start. Our house was at 30% according to the thermostat on the main level, so I turned it up. We are now down to 27 and I have it set between 40 and 45. I don’t think it’s doing anything. Not sure it did much last year but had no way of knowing. I know there’s water flowing from when I changed the filter. Outside of that, it makes no noise, there’s no readout and it’s a closed system.