How HVAC System Manages Airflow


Indoor Air Quality

Effective Air Purifier Halo LED

Having an Air Purifier is more important than ever these days since there are many invisible contaminants existing is everyone’s home. These contaminants can build up over time and create health issues, odors and negatively impact your health. Some of these micro contaminants are bacteria, viruses, VOCs, mold spores and toxins too small to be filtered out by standard air filtration, even HEPA filters.

7 Ways Your HVAC Can Combat Seasonal Allergies

Combatting seasonal allergies is crucial for many individuals. This comprehensive report explores five effective ways in which your HVAC system can help combat seasonal allergies. By implementing these strategies, you can create a healthier and more comfortable indoor environment, especially during allergy seasons.

Carbon Monoxide Dangers

Carbon Monoxide (CO) is a colorless, tasteless, potentially toxic gas when found in high levels. Carbon Monoxide is naturally occurring and at low levels do not cause harm. At levels of 35ppm or greater, it becomes toxic. It can develop in homes from Improperly...

Pets and Your HVAC

Having pets impacts your home's Indoor Air Quality as well as your HVAC system. Here are some important things to consider regarding keeping Pets and how to protect your HVAC system. It is important to understand the effects and the best way to handle these issues. If...

5 Clever Ways to Keep Your Home Cool During Summer

Summer is one of the most popular seasons, but what about when it gets hotter than 110 degrees? How do you keep your home cool? You can do many things, but some of the best ways to keep your home cool are to invest in AC units or central air systems. There'll be...

How to Properly Care For Your Gas Fireplace

  How to properly care for your Vented or Non Vented Gas Fireplace. A Gas Fireplace can be a warm, inviting addition to your home. It is of the utmost importance that it be clean and operate properly for full enjoyment and safety for you and your family. Cleaning...

Air Purification

Air Knight Air Purification IPG/ PX5 technology is available for residential installation at affordable rates. These devices are easily installed into your existing duct system by an HVAC Specialist. They continually work to reduce and help eliminate airborne and surface contaminants in your home.

Upgrade Your Heating System

How do you know when it’s time to consider upgrading to a new heating system? Obviously if the unit has died or is not working, but it may be wise to consider replacement well before that happens or before costly repairs add up. Many things can greatly affect the longevity and efficiency of your furnace, heat pump or boiler system over the years such as not changing the air filters often enough or not having regular maintenance to ensure proper operation. Additionally, a poorly operating heating unit can negatively impact the air quality in your home.

Healthy HVAC Add Ons

Consider an HVAC Add On for greatly improved health and comfort benefits. Make sure your home is safe, healthy and comfortable easily and affordably with these whole home HVAC Add on technologies. Air in your home becomes continually contaminated by dirt, germs, debris, odors. Healthy, clean air in your home is healthier and more comfortable for you and is achievable.

Inverter Technology

Inverter HVAC systems offer many benefits to homeowners such as:
Higher Efficiency
Greater Energy Savings
More Uniform temperatures in your home
Quieter operation
This latest HVAC technology has been developing over the past several years and has been utilized in Ductless Mini Split applications. Now offered by many manufacturers for whole home ducted systems as a means to improve performance and efficiency.

Coil Care

Coil care for your HVAC system is very important. A coil is a main component of your HVAC System. There is a condenser coil and an evaporator coil. These coils are an integral part of the heat exchange that happens when cooling your air. These coils contain your refrigerant. Many older systems used Freon (R22) while more recent systems use Puron (R410a).

Attic Ventilation Fans

The benefits of an attic ventilation fan are more cumulative rather than instantaneous. An attic fan operates as an exhaust and will work to push hot air out of the attic through a shuttered or louvered vent. As heat continually rises, the attic fan will help eliminate accumulating heat.
As the heat is evacuated, moisture and odors can also be reduced.

Smart Thermostats

Smart thermostats have entered our world and are designed to work and integrate into our smart homes with smart devices. These thermostats can be controlled locally or remotely with smartphones, computers, smart systems like Google or Alexa. Those that love automation will love these features. Some models also will “learn” your needs and can make adjustments on their own.

Odors and Allergens

Many things cause odors and allergens in your home. We generally differentiate between odors and scents. Both refer to things we “smell”. Odors generally refer to smells which we find objectionable, while scents we find pleasurable. There are organic odors and inorganic odors. Both organic and inorganic odors come from molecules which become airborne and allow us to interact with them.
Allergens we cannot see or smell, but they can cause significant health issues especially if you have allergies.

Ductless, Mini Split AC

Ductless Air Conditioning systems are well worth considering in certain circumstances. Central Air systems operate by sending air through ductwork. The ducts are installed to direct the flow of air through tubes called ducts.

Plants Improve Indoor Air Quality

Believe it or not, house plants can help improve the air quality in your home. Plants have a natural ability to purify our air. Their process of photosynthesis enables them to absorb light, and gasses such as carbon dioxide and use them to fuel their growth. As a bi-product they produce oxygen.

Indoor Air Purification

The Reme-Halo air purification system is a new warrior in the fight against contaminants in your home. This device is a “Whole Home” purification system. It is installed right in your HVAC duct system, and kills bacteria and viruses in the air as well as on surfaces. It also combats allergens, smoke, odors and VOCs (Volatile Organic Compounds) in homes and businesses.

HVAC Air Filters

The importance of changing your HVAC system’s air filters regularly cannot be over stated. It is a crucial aspect of your HVAC system running at it’s peak efficiency. It is also critical in filtering out potentially dangerous allergens, bacteria, dirt, debris from the air you breathe.

Introducing Champion HVAC Products

Champion Heating and Cooling products are designed, manufactured and assembled in America. The Champion HVAC product line is owned by Johnson Controls (a recognized global Industry leader) ensuring trustworthiness and dependability.

Ominous Dangers of Space Heaters

The dangers of using space heaters should not be underestimated. Using electric space (portable) heaters can be a viable option for heating your home or room in an emergency or short term situation, but there are many dangers to be aware of.

Choosing the Best Air Filter for Your Home

Replacing your air filter is one of the small things you can do that can greatly affect the quality of air inside your home. Since many illnesses are associated with airborne contaminants, indoor air quality is a very important consideration.

HVAC and Your Pets

If you have pets, there are several things you can do to make your home and theirs safer, healthier and more comfortable for all of you.

Molinete de flujo de aire

How HVAC System Manages Airflow

by | May 28, 2019 | Educational, Indoor Air Quality, Repairs and Maintenance | 1 comment


Airflow is very important to your home HVAC system. Your HVAC System manages airflow in your home. The system takes in air, warms or cools it and then redistributes it around your home to maintain the desired temperature.

Of course, there is much more to it. As the air is brought into the system, it is filtered to remove contaminants and debris.

Residential HVAC systems require unobstructed airflow in order to operate properly.

Airflow Resistance

Resistance is caused when airflow is blocked or limited. The air is pulled into the system by a motor operating a fan which pulls the air in.

Dirty Air Filter

Most residential HVAC systems use a 1/3 to 1/4 horsepower motor to do this. This is sufficient to pull the air through the filters and into the system for cooling or heating. If there is any strong resistance, blockage or impediment to the air flow it can cause the motor to have to work much harder. A consistent strain on the motor can damage or weaken it’s function.

Sometimes there are purposeful obstructions such as dampers installed in the ductwork to limit airflow to particular areas at certain times. These do not interfere with normal functions of your HVAC system and allow control over zones in your home.

Obstructed HVAC

Airflow to outdoor units is also important since they can become hot and use the fans to cool the units. If the unit continually runs hot it can damage the system. It is important to keep any obstructions away from your outside HVAC units. There should be at least 24” clearance surrounding three sides and 6” to the building. There should be 36- 48” clear space over your units.

Obstructions include walls, shrubbery, tall grasses, fencing, etc. This is a general rule of thumb clearance requirement and may vary somewhat per the manufacturer’s instructions.

Air Intake

Clean air intake is important to the proper function and efficiency of every HVAC system. Your air filters are important to this function. Air filters require replacement every three months or every month is you have pets or high traffic. This ensures that contaminants are reduced or eliminated before being conditioned and recirculated into your home.

There are many different kinds of filters, some only remove larger particulates, others can remove fine particulates, microbes, mold spores and other debris. See our blog on Air Filters.

Reme- Halo

Air purifiers take it to another level by destroying most all contaminants, microbes, VOCs and odors. For more information visit our Reme-Halo blog.

Air Output

The air output should be cleaned and conditioned (either heated or cooled) air which is recirculated throughout your home. The volume of air circulated is dependent on the size system you have. If your air filters are dirty or clogged then debris and contaminants will enter your HVAC system and may cause buildup or damage. Furthermore, the contaminated air will be recirculated into your home which can cause many health concerns.

AC Maintenance

Regularly scheduled twice a year HVAC maintenance is important to ensure your system is operating properly. Air Doctor Heating and Air can provide you with service and maintenance. We also offer maintenance contracts which provides these services and also offers discounts.


HVAC Licenses

  •   MD HVAC # 17747
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