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What are the Benefits of a Variable-Speed HVAC System?

What are the Benefits of a Variable-Speed HVAC System?

As a Tampa homeowner, there are some significant differences you need to be aware of regarding how a variable-speed HVAC system works as compared to a single-stage system. Basically, one provides comfort while another provides comfort plus cost savings and better humidity control. 

Variable-Speed vs. Single-Stage HVAC Systems

Single-Stage HVAC Systems

A single-stage HVAC system is what most people have in their homes and offices and works similarly to how a portable window AC unit operates. A single-stage HVAC compressor has only one speed, it is either on or off. This results in shorter and more frequent on and off cycles.

While the single-stage HVAC works fine, there are better options regarding both energy efficiency as well as cooling and heating comfort.

Variable-Speed HVAC System

Variable-speed HVAC systems, including two-stage systems, are a newer technology. Variable-speed systems are designed to run for longer periods at a lower setting. That means fewer start and stop cycles.

Benefits of a Variable-Speed HVAC System

The benefits of variable-speed systems are an important consideration, especially in Florida. Longer operating cycles increase the comfort of your home and reduce your energy cost by:

• Maintaining a more even temperature: Because the fan operates longer during each cycle, air circulation is increased, resulting in fewer hot and cold zones inside your home.

• Reducing humidity and moisture: Longer run cycles result in your HVAC system being more efficient in reducing the humidity level in your home.

• Using less energy: Just as your car gets better gas mileage on the highway than it does around the city, an HVAC system uses more energy the more frequently it has to start and stop. A variable-speed system uses less than 40 percent of the total energy than a single-stage system uses.

How to Choose Between a Single- and Variable-Speed HVAC System

The cost can often be a deciding factor. While a variable-speed system can cause a little sticker shock, it will cost far less to operate, significantly reducing energy costs.

A single-stage HVAC system may be the only feasible option for those on a tight budget. This type of system will, of course, take care of cooling and heating your Florida home -- albeit more expensively. However, if there is any way you can afford the upfront cost of a variable-speed system, your home, your comfort and your pocketbook will all benefit in the long run.

If you simply cannot afford a full variable-speed system, a less expensive two-stage system is a fair compromise, offering a reduced price tag, while still providing some of the advantages of a variable-speed system.

Bottom line: An HVAC system that operates efficiently will cut your heating and cooling costs, and this will more than offset the initial purchase and installation of a variable-speed HVAC system. If you still have questions regarding a single-stage or variable-speed HVAC system, or you need to have your system serviced or upgraded, contact us at Fairway Heating & Cooling at (813) 519-6620. We have over 30 years of experience working in and around the Tampa area. We are intimately familiar with the demanding conditions that Florida HVAC systems have to operate under and we always make our customer’s satisfaction our priority.


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