What Are the Different Types of HVAC Systems?

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A reliable and efficient HVAC system is essential for maintaining a comfortable home. However, with so many different types of HVAC systems available, it can be overwhelming to determine which one best suits your needs. 

Whether you’re building a new home, replacing an old HVAC unit or upgrading your current system, understanding the most common types of HVAC systems and their features is crucial in making an informed decision.

In this comprehensive guide, we’ll explore the various types of HVAC systems, including ducted and ductless options and discuss their pros and cons.

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What Is An HVAC System?

HVAC is an acronym that stands for heating, ventilation and air conditioning. It refers to the various systems used for moving air between indoor and outdoor areas, along with heating and cooling residential and commercial buildings. The primary goal of an HVAC system is to provide thermal comfort and maintain good indoor air quality.

A typical HVAC system includes several components that work together to control:

  • Temperature: Cooling and heating the air to maintain a desired temperature range
  • Humidity: Regulating moisture levels in the air for comfort and preventing mold growth
  • Air cleanliness: Filtering and purifying the air to remove dust, allergens and other pollutants
  • Air movement: Circulating and disturbing conditioned air throughout the building

HVAC systems can include various equipment, such as central air conditioners, heat pumps, furnaces, boilers and ductless mini-splits. The specific components needed depend on factors like the size of the building, the number of rooms, the local climate and the particular needs of the occupants.

There are two main types of HVAC systems — ducted and ductless. Let’s explore the examples of each.

Ducted HVAC Systems

Ducted HVAC systems use a network of ducts to distribute conditioned air throughout the house. The main components of a ducted system include an outdoor unit, an indoor unit and a system of ducts that carry the conditioned air to various rooms in the home.

Split Systems

Split systems, also known as forced air systems, are made of an outdoor unit that houses the condenser and compressor and an indoor unit, which includes the air handler and evaporator coil. The term “split” refers to the fact that some components are located inside the home while others are outside.

Split systems have several benefits, including:

  • Cost-effective compared to other central air options
  • Can be added to homes with existing ductwork for forced hot air heating
  • Improves indoor air quality through filtration
  • Provides even cooling throughout the home

The cons of split systems are the following:

  • Indoor air handler can be noisy
  • Ductwork takes up space in walls and ceilings
  • Leaky ducts can reduce energy efficiency
  • Higher upfront cost compared to window units

Hybrid Split System

A hybrid split system, also known as a dual-fuel system, combines a gas furnace with an electrical heat pump. Depending on weather conditions and energy costs, you can switch between electricity and gas to heat your home with this system. The heat pump is used for cooling and mild heating, while the gas furnace kicks in during colder temperatures to provide more powerful heating.

The pros of hybrid split systems are the following:

  • Offers flexibility to choose between gas and electric power for optimal cost savings
  • Heat pump provides efficient cooling and mild heating
  • Gas furnace delivers powerful heating during cold weather
  • May qualify for electric utility rebates and tax credits

Hybrid systems also have several disadvantages, including:

  • Higher upfront cost compared to standard split systems
  • More complex system with additional components that may require repairs
  • Requires annual maintenance for the heat pump and furnace

Zoned HVAC Systems

A zoned HVAC system allows you to independently control the temperature in different areas or “zones” of your home. Zoned HVAC systems use dampers within the ductwork that selectively block or allow airflow to a specific zone. Each zone has its own thermostat, enabling you to customize the temperature settings according to your preferences and occupancy.

The advantages of zoned HVAC systems are the following:

  • Enhances comfort by allowing temperature customization room-by-room
  • Saves energy by not cooling or heating unused areas
  • Can control zones via separate thermostats or a smartphone app
  • Reduces conflicts over temperature preference among family members

Zoned HVAC systems have several disadvantages, including:

  • Higher installation costs due to complex ductwork and control systems
  • Requires regular maintenance to ensure dampers are functioning properly
  • May not be cost-effective for smaller homes
  • Uneven temperatures between zones may occur if the system is improperly designed or installed

Ductless HVAC Systems

Ductless HVAC systems do not rely on air ducts to distribute conditioned air throughout the home. Instead, they typically comprise of an outdoor condenser or compressor unit connected directly to one or more indoor air handling units set up on walls or ceilings.

Ductless Mini-Splits

Ductless Mini-Splits

Mini-split systems are made of an outdoor compressor or condenser unit and one or more indoor air handling units called “heads.” Power cables, refrigerant tubing and a condensate drain line connect the indoor and outdoor units through a small hole in an exterior wall by power cables.

The following are the pros of duct-free mini-splits:

  • Easier to install compared to traditional ductwork
  • Improves energy efficiency by minimizing air leakage
  • Allows for flexible zoning, with the ability to add indoor units as needed
  • Provides cooling and heating in a single system

The cons of ductless mini-splits include:

  • Higher upfront cost, particularly if you require multiple indoor units
  • Wall-mounted indoor units may not blend with interior aesthetics
  • Limited heating capacity in icy temperatures
  • Each indoor unit requires a dedicated electrical circuit

Window Air Conditioners

Window air conditioners are self-contained units that cool a single room or a small area. They are typically installed in a window or through a hole in an exterior wall. They contain all necessary components, including the compressor, condenser, evaporator and air handler, in one compact box.

The pros of window AC units are:

  • Most affordable option for cooling a single room
  • Easy to install without the need for ductwork
  • Portable 
  • Can use multiple units to cool large spaces

Some cons of window AC units include:

  • Less visually appealing compared to central air systems
  • Obstructs window view and natural light
  • Noisier than other HVAC systems
  • Potential security risk if installed on a ground-floor window

Portable Air Conditioners

Portable air conditioners are freestanding units that can be moved from room to room. They work similarly to window units but sit on the floor. A flexible exhaust hose is connected to the unit and vented out through a window to remove hot air and moisture from a room.

The advantages of portable AC units include:

  • Highly mobile 
  • More affordable than installing a complete central HVAC system
  • Does not require permanent installation 
  • Suitable for smaller homes, apartments or rooms without exterior windows

The disadvantages of portable AC units include:

  • Less efficient at cooling compared to other HVAC systems
  • Noisier than window units or central air
  • Occupies valuable floor space in the room
  • Requires more frequent maintenance, such as emptying water tanks

Heat Pumps

Heat pumps are versatile HVAC systems that can heat and cool your home. They transfer heat from one place to another rather than generating heat like furnaces do. Heat pumps remove heat from your home and expel it outside in summer, while in winter, they extract heat from the outdoor air and bring it inside.

You can have a portable or permanent heat pump. Portable heat pumps are freestanding, allowing you to move them from room to room as needed. Permanent heat pumps can be single-zone or multi-zone. Single-zone heat pumps are made of one outdoor unit connected to a single outdoor unit, while multi-zone ones have one outdoor unit connected to multiple indoor air handling units. 

Heat pumps have several benefits, including:

  • Provide cooling and heating in a single system
  • Highly energy-efficient, especially in moderate climates 
  • Allow for targeted temperature control in individual rooms
  • Portable heat pumps are easy to install and move between rooms
  • Ideal for supplemental heating and cooling in specific areas

There are several drawbacks of heat pumps, including:

  • High upfront costs compared to traditional heating and cooling systems
  • Require a separate indoor unit for each room or zone
  • Limited heating capacity in frigid temperatures
  • Requires a window or wall opening for the exhaust hose

Hydronic Heating Systems

Hydronic heating systems are a type of radiant heating that uses hot water to distribute heat throughout the home. These systems typically comprise a boiler, pipes, radiators and radiant floor systems. The boiler heats water, which is circulated through a series of pipes to radiators, baseboards, or radiant floor systems in each room.

There are several pros of hydronic HVAC systems, including:

  • Provides even, comfortable heat without the need for forced air
  • Quiet operation
  • Can be zoned for individual room temperature control
  • Compatible with various fuel sources, including gas and electricity

The cons of hydronic heating systems include:

  • Higher installation costs compared to forced air systems
  • Requires extensive piping and plumbing work
  • Does not provide cooling capabilities
  • May take longer to adjust room temperatures compared to forced air systems

Factors to Consider When Choosing An HVAC System

Factors to Consider When Choosing An HVAC System

When selecting the best HVAC system for your home, consider the following factors:

Size of Your Home

The square footage of your home will determine the capacity of the HVAC system needed to heat and cool your space efficiently. An HVAC professional can help you calculate the appropriate size based on factors such as ceiling height, insulation, window size and placement and local climate.

Energy Efficiency

To save energy costs, look for HVAC systems with high Seasonal Energy Efficiency Ratio (SEER ) and Heating Seasonal Performance Factor (HSPF) ratings. Higher ratings indicate better energy efficiency, resulting in lower utility bills and reduced environmental impact.

Installation Costs

Consider the upfront costs of installing different types of HVAC systems, including any necessary ductwork or electrical upgrades. While some systems may have a higher initial cost, they may offer long-term energy savings that can offset the investment over time.

Maintenance Requirements

Some HVAC systems require frequent maintenance, which can impact long-term costs and convenience. Consider each system’s maintenance needs and choose one that aligns with your availability and budget for ongoing care.

Zoning Preferences

If you want to control temperatures in different areas of your home independently, consider a zoned system or ductless mini-splits. These options allow you to customize your comfort levels based on room usage and occupant preferences.

Indoor Air Quality Concerns

If you or your family members have allergies or respiratory issues, look for HVAC systems with advanced filtration options. Some systems offer built-in air purification features or can be paired with standalone air cleaners to improve indoor air quality.

Noise Levels

Consider the noise levels of different HVAC systems, particularly if you have bedrooms or other quiet areas in your home. Some systems, like ductless mini-splits, are known for their quiet operation, while others may produce more noticeable sound.

FAQs

To help you choose the best HVAC system for your home, we’ve answered some of the most common questions on HVAC systems:

What Is the Best HVAC System for My Home?

The best HVAC system for your home depends on many factors, such as your climate, home size, energy efficiency preference and budget. A professional HVAC contractor can assess your needs and recommend the most suitable system.

What Is the Difference Between HVAC and AC?

HVAC stands for heating, ventilation and air conditioning. It encompasses all components of indoor comfort control, including heating and cooling. AC refers specifically to the cooling aspect of an HVAC system.

What Size HVAC Do I Need for My Home?

The ideal size of your HVAC system will depend on your home’s square footage, insulation, window placement, and other factors that impact heating and cooling load. An HVAC professional can calculate load to determine the appropriate system size for your home.

How Much Does It Cost to Install A New Central AC?

The cost of installing a new central AC system varies based on your home size, the type of system you choose and local labor rates. 

What Is the Life Span of an HVAC System?

The life span of an HVAC system varies depending on the type of system, brand and maintenance. On average, air conditioners and heat pumps last 10 to 15 years, while furnaces can last 15 to 20 years. Regular maintenance and timely repairs can help extend the life of your system.

How Often Should I Have My HVAC System Serviced?

Have a professional service your HVAC system at least once a year, typically before the start of summer or winter. Regular maintenance can help improve system efficiency, prevent breakdowns and extend the life of your equipment.

Choosing the Right HVAC Contractor

Selecting the right HVAC system is one part of the equation. Choosing a reputable, experienced HVAC contractor to install and maintain your system is equally important. A skilled contractor will:

  • Properly size your HVAC system based on your home’s unique characteristics.
  • Install the system according to manufacturer specifications and local building codes.
  • Offer ongoing maintenance and repair services to keep your system running efficiently.
  • Provide guidance on energy-saving practices and thermostat settings.
  • Stand behind their work with warranties and guarantees.

Trust Strada Air Conditioning & Heating For Your HVAC Needs

Now that you understand the different types of HVAC systems available, it’s time to take the next step toward a more comfortable and energy-efficient home. Contact Strada Air Conditioning & Heating today to schedule a free in-home consultation. Our experts will assess your unique needs, recommend the best solution for your home and budget and provide expert installation and maintenance services to keep your system running smoothly for years to come. 

Don’t wait — schedule your consultation with Strada today and experience the difference that a trusted, professional HVAC contractor can make in your home comfort.

Trust Strada Air Conditioning & Heating For Your HVAC Needs

Strada Services CEO, Joe Strada

Joe Strada, owner of Strada Electric, Security & Air Conditioning, started working at the young age of 14. He’s never attended college, but he has spent his life dedicating his time and energy to his trade and providing high-quality services to his customers. At 19, Joe started working at a well-known air conditioning company and developing his commitment to excellence. He has state certifications in electric, plumbing, air conditioning, residential building and general contracting. During his years of training and experience, Joe noticed a sincere need for a dependable electrical contractor in Florida who embodied the same dedication to customer service in which he believed. In 2003, Joe co-founded Strada Electric, Security & Air Conditioning. Since then, the company has been in the business of providing peace of mind to customers. We offer expert electric, security and air conditioning solutions for homes and businesses, leveraging our experience to deliver professional and responsive service with reliability and respect.

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Strada Services CEO, Joe Strada

Joe Strada, owner of Strada Electric, Security & Air Conditioning, started working at the young age of 14. He’s never attended college, but he has spent his life dedicating his time and energy to his trade and providing high-quality services to his customers. At 19, Joe started working at a well-known air conditioning company and developing his commitment to excellence. He has state certifications in electric, plumbing, air conditioning, residential building and general contracting. During his years of training and experience, Joe noticed a sincere need for a dependable electrical contractor in Florida who embodied the same dedication to customer service in which he believed. In 2003, Joe co-founded Strada Electric, Security & Air Conditioning. Since then, the company has been in the business of providing peace of mind to customers. We offer expert electric, security and air conditioning solutions for homes and businesses, leveraging our experience to deliver professional and responsive service with reliability and respect.