We just had a new AC and Heater put in, plus all new ductwork to make our new unit runs as efficiently as possible. They also moved the heater into the attic so we could free up some space in our house (it used to be in a closet off the dining room). Olaf and his guys at CerProTech did an awesome job! I highly recommend them to all of my friends and family! After they completed the job, the amount of air flow is way more powerful than before with the new ducts and our heater is only on for a fraction of the time.