An air handler, or air handling unit (often abbreviated to AHU), is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. [1]

Sep 2, 2025 · What is an air handler? Briefly, an air handler is an indoor HVAC unit that circulates heated or cooled air throughout your home. It’s part of a matched system of heat pump + air …

An air handler is a component of your central heating and cooling system that circulates air through your ductwork. Sometimes people refer to the air handler as the “blower,” but the …

An air handler circulates and moves air through the HVAC system, often including a blower, evaporator coils, and filters. Learn more about what an air handler is and how it improves …

Sep 5, 2025 · Learn what an air handler is, how it works in your HVAC system, key components, common problems, and maintenance tips.

Jun 5, 2025 · Learn what an air handler is, how it works with your HVAC system, and what features to consider when choosing the best air handler for your home.

May 15, 2025 · This guide will explain what an air handler is, how it operates within your HVAC system, the benefits it offers, and why choosing the right air handler is so important.

Jul 23, 2025 · An air handler is the indoor component of an HVAC system responsible for circulating conditioned air throughout your home. It works in tandem with an outdoor unit (like …

An air handler, often called a fan coil, is the indoor unit of your HVAC system responsible for regulating and circulating conditioned air. It pairs with a heat pump or air conditioner to filter …

An air handler's main function is to circulate the air in your system, and the components surrounding it alter the functionalities of heating, cooling, and air quality.