You’ve checked the usual suspects and you still can’t find the reason why some of your rooms are noticeably warmer or cooler than others.

By usual suspects we mean, furniture blocking a vent, or dirty coils or a dirty air filter, or malfunctioning dampers.

If none of these is causing the problem, you have a more serious issue with air imbalance in your heating, ventilation and air conditioning system.

An experienced HVAC technician equipped with a psychrometer and other tools can find what is causing the airflow imbalance. Then he can take steps to restore the proper balance of cubic flow per minute, giving you efficient heat and air in all rooms.

The correct air balance is established when a new system is installed, but it can become lopsided over time or if the property-owner makes substantial changes to the home or office.

Need residential or commercial HVAC work? Call Premier, which serves Brooklyn, Queens, Manhattan and Long Island.