HVAC is a complex unit with many components. Many installation mistakes are possible during unit installation by a professional. Following are the common HVAC installation mistakes and tips to avoid them.


Choosing a Wrong Size Furnace


Bigger size is not always the solution when choosing a furnace. Most contractors also suggest people to choose a furnace matching in size to their previous one, which typically provides the correct amount of airflow. Remember that professional calculations are required to choose a furnace for accurate installation of the HVAC unit.


Ignoring Combustion Safety


Modern combustion appliances have unique back drafting that can confuse a contractor. It is essential that the contractor checks combustion safety of the unit before its installation. Some important steps include checking cracks in the piping, testing for flue gases, and depressurization. Carbon monoxide leakage can also cause CO poisoning, becoming very harmful for you and your family.


Installing Wrongly Sized Duct Lines


One of the most common problems with HVAC units is leaking or improperly sized ducts. Improperly sized ducts can lead to improper air flow, and low airflow will overheat the furnace.


Forgetting the V in HVAC


Mot people and even contractors think that the purpose of HVAC unit is to change the room temperature from hot to cold or from cold to hot. However, ventilation is the third pillar of HVAC units. Proper ventilation is required to keep the air clean and balanced.


Installing with Improper Charge Level


The heating and cooling system of HVAC requires proper charge to maintain the efficiency. During installation, the charge level needs to be checked according to the manufacturer's specifications. Improper charge leads to low efficiency and potential reliability problems.


Questions to Ask When Choosing HVAC Contractor


Exceptional mistakes are understandable but a professional HVAC contractor should not make common mistakes. You can avoid common HVAC installation problems by choosing a professional HVAC contractor.


To verify their professionalism, you need to:


• Check if the contractors provide professional training to their technicians.

• Ask for references. You may also contact the referred people if needed.

• Ask about the experience of HVAC installation company in the field.


Ideally, a company should have at least three year of experience or more.


The health and safety of your family depends on many factors, and HVAC is one of them. Work with a contractor who has the experience to see what is needed, and will respond to your needs when a issue arises.


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