Ken Murray's AC & Heating » FAQs

Everything you wanted to know about Air Conditioning & Heating

Okay, maybe not everything you wanted to know about air conditioning and heating but at least a general description about how your system works to keep you comfortable!

This page describes how air conditioners work, how they cool and heat the air, how you can control moisture in the air, how air can be cleaned, and how air flows through the rooms in your house.

First you should realize that heating and air conditioning needs are different depending on the season. Regardless of whether you are trying to temper a scorching Texas summer or one of the abnormally cold winters, the “conditioning” of your air can generally be categorized as:

  • Summer: cleaning, cooling, and removing moisture from the air
  • Winter: cleaning and heating the air

Cleaning or Filtering the air can be done in lots of ways. Some air conditioners force the air through common air filters. Some air conditioners also have pleated filters, high density, or electrostatic filters. We find that the best way to filter the air in your home is by means of a good quality, rigid, disposable, pleated air filter. 

The heating and cooling of air is actually pretty simple. In general; the air in your home is passed over cold or hot surfaces depending on what you are wanting the system to do. Heat or Cool

When asking your system to cool, the air in you house will blow through a large section of the system called the evaporator coil which is filled with low temperature chemical refrigerants called Freon. 

As the air is your home passes through the evaporator coil, the heat and humidity is actually removed from the air in a process called dehumidification, resulting in the creation of condensation, which is then drained out of the house, thus cooling the air in your home.

Heating is just the opposite of course; most heating units that are used will heat the air by blowing it through a heat-exchanger or through electric heat strips. These are the two primary means of heating for residential systems.

Whether running the heat or the A/C, the air in your home is circulated through residential systems by a blower motor located inside the furnace/air handler cabinet. The size and speed of the blower motor in the air conditioner will determine the amount of air that is circulated through your home.

Service Questions

Q: What is your service area?

A: Our primary service area is Irving, Coppell, Flower Mound, Lewisville, Grapevine, Southlake and Colleyville. Please call if you have any questions about coverage.

Q: What are your office hours?

A: Monday – Friday, Open at 8 A.M. Saturday, Open at 9 A.M.

Q: Do you charge to come out and provide an estimate on new equipment?

A: Never! We provide FREE Estimates on new Lennox® A/C and Heating Equipment

Q: Do you offer financing?

A: Yes. 100% financing is available on New Lennox® A/C and Heating equipment for well qualified applicants.

Q: Are you licensed and insured?

A: Absolutely. We are fully licensed and insured.

Q: How often should I change my air filter?

A: You can never change your filter often enough. On average most systems should have their filters every 1-2 months, however, some home with multiple pets or homes with minimal carpeting may need to change their filter more frequently.