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For most homeowners, investing in new HVAC equipment in Chesterfield, MO represents a pretty major expense. Even those homeowners who do have the funds for new equipment at their disposal want to make sure that they are doing everything possible to ensure they get the best return on their investment. That is why the professional HVAC technicians on the Fresh Air Heating & Cooling team have put together this handy buyer’s guide.

Now, let us just say that there is a lot to consider when it comes time to invest in the necessary equipment. This guide is a great starting point for when you are thinking about investing in new HVAC equipment. The best thing to do in this situation, however, is to get in touch with a company you can trust and ask any questions that you may have.

ac tech with customers

Energy Efficiency

Much like the gas mileage ratings given to vehicles, an energy efficiency rating is going to tell you how far energy is going to take your system and its performance. The higher the efficiency rating, the more efficient the system. While more efficient systems will typically cost more than less efficient ones, they also save homeowners money in the long run.

  • AFUE (Annual Fuel Utilization Efficiency): An AFUE rating gauges the efficiency of a gas furnace. This efficiency is measured in a percentage, with current efficiency ratings between 80–95%. A higher percentage will result in lower bills.
  • SEER (Seasonal Energy Efficiency Ratio): A SEER rating measures the efficiency of air conditioning cooling. New systems are required to have at least a 13.00 SEER rating, with measurements of up to 21 SEER available. Again, a higher rating denotes better efficiency and lower cooling costs.

Operating Methods

There are a lot of different HVAC systems available, and different systems offer different means of operation. You may understand the difference between, say, a heat pump and a furnace. However, there are other options to consider that you may not fully grasp, such as the benefits of multi–stage heating and cooling.

Basically, a single–stage heating furnace or air conditioner operates at full capacity at all times. Because temperatures fluctuate so much, this is not an ideal situation. That is where multi–stage systems come in. When temperatures are relatively mild, they can work at lower operating levels. When temperatures are more extreme, they can operate at a higher capacity.

  • Multi–stage heating helps homeowners to enjoy high, medium, and low heating outputs depending upon changing winter weather. This helps to maintain a constant temperature throughout the house, eliminating temperature fluctuation between heating cycles.
  • Multi–stage cooling allows for more even temperatures throughout the living space, more effectively cooling a second floor with just one system. Plus, additional humidity control helps to maintain better comfort and indoor air quality levels.
  • Variable speed blowers are able to adjust their speed slowly while consuming little energy. Even when you’re not heating or cooling, this allows you to circulate air throughout the house at a cost of only $30 to $40 per year. Benefits include a very quiet operation, more even temperature distribution, year–round electrical cost savings, maximized dehumidification capability, a cleaner indoor air, and an increased SEER rating on the outdoor unit.

Noise Levels

If the layout of your property demands that your equipment is installed in a noise–sensitive area, then you should definitely make a quieter AC a top priority. The same is true with a furnace. We strongly recommend that you look for Carrier’s ultra–quiet units in such cases.

Who Are You Working With?

When you invest in this kind of equipment, the caliber of your HVAC technicians in Chesterfield, MO is every bit as important as the quality of the equipment itself. That is why you need to know that you are working with trustworthy, trained technicians. Ours are NATE and NCI–certified, licensed, and OSHA trained, for instance.

  • Competent: Our installers are continuously trained, background checked, and randomly drug tested.
  • Respectful: We respect your home and will treat it like our own. Our installers wear booties and lay down cloths for floor protection. We are responsible for any damage to your home.
  • Warranty: Our installation is backed by a 5–year warranty. If you move, the warranty is transferable to the new homeowners.
  • Follow–Up: We aim for lifelong relationships with happy customers. Unsure about your new system? We are here to answer any questions you have.
  • Insurance/Lien Waivers: We are licensed, bonded, and insured. Ask for our certifications. We are happy to share them.


When purchasing a new HVAC system, you need to know that your system is under a good warranty. We are happy to share information about your system’s warranty, for every piece of equipment.

Thermostat Control

A thermostat shouldn’t just be a switch to turn your system on and off in this day and age. One major area of focus for us is the smart thermostat. Work with us to learn more about technology allowing for humidity, air quality, fan speed, and ventilation controls.


Balancing humidity in the summer and winter is a vital step in ensuring comfort, high indoor air quality, and manageable heating and cooling costs. We have the systems necessary for helping you to maintain ideal humidity levels throughout your home, throughout the year.

Air Filtration

All furnaces and ACs require a filter in place. Interested in really boosting indoor air quality throughout your home? In addition to the standard media filters used by these systems, you may want to take advantage of an air cleaner as well. Contact us to discuss your options.

We All Need Fresh Air.

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