Frequently Asked Questions

What size heating and air conditioning system do I need?

The only way to truly determine the proper air conditioning unit size is to have your home inspected by a licensed AC (HVAC) professional. Depending on the layout and construction of your home, your individual heating and cooling needs may be completely different than a home of the same size or than a home in the same location.

How expensive are air conditioning and heat pump systems?

Depending on the size of your home, the type and condition of duct work installed and any additional accessories you might need (like a thermostat or electronic air cleaner), the cost of a new HVAC unit can vary widely. Our trained technicians can walk you through all of the options including the latest energy-efficient units, split-units, RTUs and mobile home units, and we can help you choose a heating and cooling system that best meets your individual needs.

How often should I do maintenance on my air conditioner?

Air conditioning in Jacksonville, FL is hard on your equipment, it’s a good idea to have regularly scheduled maintenance done once or twice a year to make sure it’s running properly and to foresee any potential problems down the road. You typically want to have your system checked in the Spring and in the Fall – before the weather starts to change. Your heating and cooling systems work incredibly hard to perform their functions for your home every day. The constant stopping, starting and continual operation can wear down any machine if the proper care and maintenance is delayed. However, by performing regular maintenance, you can maximize the lifecycle of your heating or cooling unit and guard against many common equipment failures. Preventive maintenance inspections performed on a regular basis can uncover leaks, rust, rot, soot, frayed wires and corroded electrical contacts that the naked eye may not notice. You should have maintenance done on your system regularly to ensure maximum efficiency and allow prevention of possible problems that may occur in the near future.

Is it necessary to replace my existing heating or air conditioning system?

Envision Mechanical Services’ technicians provide trustworthy assessments and repair for your HVAC systems and provide recommendations if you are considering a new installation. Today’s systems are as much as 60% more efficient than those manufactured even just 10 years ago. If your energy bills have risen or if the required repairs to your current system are extensive, a new unit may offer a better return on your investment.

How do I select the right heating/cooling system?

Envision Mechanical Services provides you with an energy analysis to determine operating costs and customizes a system to fit your particular needs and budget. Are allergies a primary concern? Eliminating uneven temperatures from room to room? Will savings from a new system offset the cost of a new unit?

What is the SEER Rating?

The SEER (seasonal energy efficiency ratio) is how the efficiency of your heating and cooling equipment is measured. The SEER is the amount of cooling your system will deliver per dollar spent on electricity, as compared to other systems. For example, a 3-ton unit may have a SEER efficiency rating of 13, 14, or 15. The higher the SEER the more efficient the system will be. The SEER rating of any given unit can range anywhere from 13 to 20.

Why is the SEER rating on the Energy Guide different than what my dealer quoted?

Each split system cooling unit has a nominal SEER rating. This rating can be increased with the upgrade of the same series indoor unit. The SEER rating of a system is derived based on the combination of equipment installed in the home. The outdoor equipment (heat pump or air conditioner), as well as the indoor equipment (evaporator coil and furnace, or air handler), play a vital role in the total rating.

What type of filter should I use? And how often should I replace it?

Standard filters work to keep your system and its ductwork clean, but they don’t really improve indoor air quality. To do that you need a media filter. The media filter rests between the main return duct and the blower cabinet and will improve dust and particle removal by seven times that of a standard filter. However, upgrading to a pleated media filter will remove everything from insecticide dust to airborne viruses from the filtered air. Always choose a filter that matches your blower’s capacity. For optimum efficiency and filtration, Envision Mechanical Services recommends that you replace your disposable filters at least once a month. If you have washable filters, they should be cleaned once a month.

What is “indoor air quality”?

Indoor air quality (also called “indoor environmental quality”) describes how inside air can affect a person’s health, comfort, and ability to work. It can include temperature, humidity, lack of outside air (poor ventilation), mold from water damage, or exposure to other chemicals. Currently, OSHA has no indoor air quality (IAQ) standards but it does provide guidelines about the most common IAQ workplace complaints.

What is considered good IAQ?

The qualities of good IAQ should include comfortable temperature and humidity, adequate supply of fresh outdoor air, and control of pollutants from inside and outside of the building.

What are the most common causes of IAQ problems?

The most common causes of IAQ problems in buildings are:

• Not enough ventilation, lack of fresh outdoor air or contaminated air being brought into the building.

• Poor upkeep of ventilation, heating and air-conditioning systems.

• Dampness and moisture damage due to leaks, flooding or high humidity.

• Occupant activities, such as construction or remodeling.

• Indoor and outdoor contaminated air.

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