It’s not too late to prepare your HVAC system for extreme cold. The best thing you can do is make sure your system is clean and capable of running as efficiently as possible. The next best step? Schedule a professional tune-up. Your Trane dealer will inspect your unit and make necessary repairs so you can enjoy a warm and cozy winter ahead. In the meantime, here are a few simple ways to help your system perform at its best: - Change your air filter - Clear your outdoor unit of leaves and debris