Heating Equipment:

Furnace: A furnace is a common heating device that heats air and then distributes it throughout a building using ductwork.
Boiler: Boilers heat water, which is then circulated through radiators, baseboard heaters, or in-floor heating systems to provide warmth.

Ventilation System:

Air Handling Unit (AHU): An AHU is a component that helps regulate and circulate air. It contains a blower, filters, and sometimes a heat exchanger to control temperature and air quality.
Ductwork: Ducts are used to transport air throughout the building. They distribute both heated and cooled air to various rooms.

Air Conditioning Equipment:

Air Conditioner: This device cools and dehumidifies indoor air. There are different types of air conditioning systems, including central air, split systems, and window units.
Heat Pump: A heat pump can both heat and cool a space. It transfers heat from one location to another, depending on whether it’s in heating or cooling mode.
Thermostat: The thermostat is a control device that allows users to set and regulate the desired temperature. Modern thermostats can be programmable or smart, offering advanced features like remote control and energy-saving capabilities.

Sensors and Controls:

Advanced HVAC systems may incorporate sensors for measuring temperature, humidity, and occupancy. These sensors help optimize system performance and energy efficiency.

Ductwork and Vents:

The network of ducts and vents carries conditioned air to various rooms and returns the stale air back to the HVAC system for treatment.