Difference Between Gas vs. Electric Central Heat & Air Systems

When it comes to central HVAC systems, homeowners typically have two fueling options: gas or electric. Understanding the differences between these two types of heating and cooling systems can help you determine the best option for your home’s comfort needs.

In this blog post, the comfort experts at Harris Air Services explore how to identify whether your system runs on gas or electricity. We’ll also break down the pros and cons of each type so you can make the most informed decision for your home.

How to Tell Whether Your System Runs on Gas or Electricity

There are several ways to figure out which type of fuel your HVAC system relies on to function, including:

Visual Cues

• Location: Gas furnaces are typically located in basements or utility closets where they can be easily connected to a gas line. By contrast, electric furnaces are more flexible and can be found in attics, closets, or even garages.
• Appearance: Gas furnaces have a burner assembly, heat exchanger, and flue pipe for venting exhaust fumes. They may also have a pilot light or electronic ignition system. On the other hand, electric furnaces tend to be more compact and lack the venting components seen in gas systems.
• Venting: Gas HVAC systems require venting to expel combustion gases, which means you’ll notice flue pipes leading to the exterior of your home. Electric systems do not produce these gases and, therefore, don’t require venting.

Functional Cues

• Heating speed: Gas furnaces typically heat up faster than electric models. If your home warms up quickly after adjusting the thermostat, you likely have a gas furnace.
• Noise level: Gas units tend to produce more noise than their electric counterparts due to the combustion process. If you hear a noticeable whooshing sound when your heater kicks on, it’s likely a gas furnace.

Pros & Cons of Gas HVAC Systems

Gas-powered systems have advantages and drawbacks, including:

Pros

• Cost: Gas is often cheaper than electricity, making gas systems less expensive to operate over time. This can lead to significant savings on energy bills.
• Efficiency: Modern gas furnaces are highly efficient, with Annual Fuel Utilization Efficiency (AFUE) ratings of 90% or higher.
• Performance: Gas furnaces provide strong, consistent heat and can warm a home more quickly than their electric counterparts.

Cons

• Safety: Gas furnaces have a higher risk of gas leaks and carbon monoxide poisoning if not properly maintained.
• Environmental impact: While natural gas burns cleaner than coal, it’s still a fossil fuel and can contribute to greenhouse gas emissions.

Pros & Cons of Electric HVAC Systems

Electric HVAC systems have their own benefits and disadvantages to consider, including:

Pros

• Cost: Electric systems tend to cost less to install than gas units. Additionally, operational costs may be lower in regions with low electricity rates.
• Efficiency: Electric furnaces operate at nearly 100% efficiency since all electricity is converted into heat, eliminating the energy losses associated with venting in gas systems.
• Safety: Electric systems don’t pose the same risks of gas leaks or carbon monoxide poisoning, making them safer for indoor use.
• Environmental impact: Electric HVAC systems can be eco-friendly, particularly when powered by renewable energy sources like solar or wind turbines.

Cons

• Performance: Electric furnaces can take longer to heat a home than gas systems, which may not suit those requiring quick heating.
• Cost: In areas with high electricity rates, electric systems’ operational costs can be higher than those of gas units.

Get Help Choosing the Right System for Your Home With Harris Air Services

Are you not sure which type of system is best for your comfort needs? Harris Air Services is here to help. Our team will carefully assess your home’s layout, size, and comfort preferences to identify the best HVAC solution for your unique needs. With a deep commitment to honesty and customer service, we go above and beyond to ensure your home is comfortable all year.

Book HVAC installation in McKinney, TX by contacting our team online to request your appointment.