Installed Aprilaire 700 whole-home humidifier today. Connected to supply plenum with proper ductwork modifications. Ran new water line from nearby utility sink. Set up drain properly. Wired humidistat to existing HVAC control system for automatic operation. Calibrated to maintain 40% relative humidity. Showed homeowner how to adjust settings and perform basic maintenance. Should resolve dry air issues they've been experiencing. Will drastically improve comfort level during heating season and reduce static electricity problems throughout home.