Darrin Wood Heating and Cooling

711 Prospect Avenue Springfield, IL 62704

(217) 789-0504

24/7 Emergency Service

Your HVAC (Heating, Ventilation, and Air Conditioning) system is the heart of your home, responsible for maintaining comfort and indoor air quality year-round. To ensure optimal performance and longevity, it’s essential to understand the different types of HVAC services available and when each is needed.

In this blog post, we’ll explore the various HVAC services, explain their importance, and provide insights into common HVAC-related terms to empower you to make informed decisions about your system’s maintenance and repair needs.

Common HVAC Terms

  • HVAC (Heating, Ventilation, and Air Conditioning): HVAC refers to the system responsible for regulating indoor temperature, humidity, and air quality in residential, commercial, and industrial buildings. HVAC systems typically include components such as furnaces, air conditioners, heat pumps, ductwork, thermostats, and ventilation systems.


  • Thermostat: A thermostat is a device that regulates temperature by controlling the operation of HVAC systems. Thermostats may be mechanical or electronic and can be programmed to maintain desired temperature settings based on time of day, day of the week, or occupancy patterns. Modern thermostats often feature digital displays, programmable settings, remote access, and smart technology for enhanced control and energy savings.


  • Heat Pump: A heat pump is a type of HVAC system that provides both heating and cooling by transferring heat between indoor and outdoor environments. In heating mode, a heat pump extracts heat from outdoor air, ground, or water and transfers it indoors. In cooling mode, it removes heat from indoor air and releases it outdoors. Heat pumps are energy-efficient alternatives to traditional furnaces and air conditioners, especially in moderate climates.
Heat Pump
  • Air Handler: An air handler is a component of HVAC systems responsible for circulating conditioned air throughout a building. It contains a blower fan, evaporator coil, and filter, and is typically located indoors, either in a utility closet, attic, or mechanical room. Air handlers may be part of a central air conditioning system, heat pump, or ductless mini-split system.


  • Ductwork: Ductwork refers to the network of ducts used to distribute heated or cooled air from HVAC systems throughout a building. Ductwork may be made of metal, fiberglass, or flexible materials and is typically installed in ceilings, walls, floors, or attics. Properly designed and installed ductwork ensures efficient airflow, temperature distribution, and indoor comfort.


  • Ventilation: Ventilation is the process of exchanging indoor air with outdoor air to maintain indoor air quality and remove indoor pollutants, odors, and excess moisture. Proper ventilation is essential for diluting indoor pollutants, preventing moisture buildup, and promoting healthy indoor environments. Ventilation systems may include exhaust fans, supply fans, air exchangers, and natural ventilation strategies.



  • Indoor Air Quality (IAQ): IAQ refers to the quality of indoor air, including its cleanliness, freshness, and healthiness. Poor IAQ can result from indoor pollutants such as dust, allergens, mold, volatile organic compounds (VOCs), and carbon monoxide. HVAC systems play a crucial role in maintaining optimal IAQ by providing ventilation, filtration, and humidity control to remove contaminants and promote healthy indoor environments. Regular maintenance and air quality testing are essential for ensuring high IAQ levels.


  • SEER (Seasonal Energy Efficiency Ratio): A measure of the energy efficiency of air conditioners and heat pumps. Higher SEER ratings indicate greater energy efficiency.


  • AFUE (Annual Fuel Utilization Efficiency): A measure of the efficiency of furnaces and boilers. AFUE represents the percentage of fuel converted into usable heat.


  • BTU (British Thermal Unit): A unit of measurement for heat output. BTU is used to quantify the heating and cooling capacity of HVAC systems.



Common HVAC Services


Heating and Air Conditioner Maintenance

HVAC maintenance involves routine inspections, cleaning, and tune-ups to keep your system running smoothly and efficiently. During a maintenance service, HVAC technicians inspect components, such as air filters, coils, motors, and ductwork, to ensure they are clean, properly lubricated, and functioning correctly.

Regular maintenance helps prevent breakdowns, improve energy efficiency, and extend the lifespan of your HVAC system. It’s recommended to schedule HVAC maintenance annually or biannually, ideally before the start of the heating and cooling seasons.


HVAC System Repair

HVAC repair services address issues with your system that may arise due to wear and tear, component failure, or improper operation. Common HVAC problems requiring repair include uneven heating/cooling, strange noises, frequent cycling, and system malfunctions. HVAC technicians diagnose the root cause of the issue and perform necessary repairs to restore your system’s functionality and efficiency. It’s essential to address HVAC issues promptly to prevent further damage and avoid compromising comfort and indoor air quality.


HVAC Installation

HVAC installation involves the installation of new HVAC equipment or replacement of existing systems. Whether you’re building a new home, renovating an existing property, or upgrading your HVAC system, professional installation is crucial for ensuring optimal performance, efficiency, and safety.

A trustworthy, licensed HVAC technician will assess your heating and cooling needs, recommend suitable equipment, and install it according to manufacturer specifications and industry standards. Proper installation is essential for maximizing energy savings, minimizing operating costs, and ensuring long-term reliability.





Understanding the different types of HVAC services and common HVAC terms is essential for maintaining a comfortable and healthy indoor environment. Whether it’s scheduling routine maintenance, addressing repair issues, or investing in new equipment, proactive HVAC care is key to maximizing efficiency, reliability, and longevity.


If you’re in need of HVAC services, don’t hesitate to book a service call with us. Our team of experienced technicians is here to ensure your HVAC system operates at peak performance year-round, providing you with comfort and peace of mind.