Does A New Furnace Come With A Coil?

Does A New Furnace Come With A Coil?

During the colder months, a stove will keep your home warm and cozy. One of the most important factors to consider when purchasing a new one is whether it has coils. We’ve looked at furnaces and coils in this article to show why this is important.

Check to see if your new furnace has coils. Furnaces generate energy through the use of electricity or gas. Coils are essential in split systems.

Furnace coils transfer heat to the air ducts by acting as heat exchangers and heat absorbers. Depending on the system, coils can be used with air conditioners or stoves. Cooling and heating devices are not as efficient as they should be without coils.

Because of its energy efficiency and durability, the stove is the most popular heating system. Gather all pertinent information about furnaces, coils, and how to keep your furnace operational.

Also check: How to Tell If Your Furnace is Leaking Carbon Monoxide

What Are Furnace Coils Used For?

You may believe you are knowledgeable about HVAC systems. On the other hand, furniture and air conditioners may be more complicated than you think.

A furnace is made up of several parts and components. You might wonder why coils are important and what they do, so keep reading.

Most homeowners are familiar with furnaces but unaware of how HVAC systems work. Coils are required for heating and cooling systems to function. The HVAC system has two coils: the condenser coil and the evaporator coil.

The Evaporator Coil:

It is a component of an air conditioner that absorbs heat in the home. It is connected to a stove or an air conditioner. The evaporator coil works with the condenser coil to complete the air cooling process.

The evaporator coil contains refrigerant, which the compressor pumps into the evaporator. The refrigerant absorbs heat from the evaporator as air passes through the blower fan coils.

The Value of Evaporator Coils:

Maintaining the efficiency of your HVAC system is critical to keeping your evaporator coils functional.

Inadequate coil maintenance can result in increased energy consumption. It can also cause frozen coils, poor heat transfer, and compressor overheating.

Coil of Condenser:

Condenser coils regulate the temperature and pressure of the refrigerant gas before it passes through the cooling and heating system.

What is The Fate of The Condenser Coil?

In the summer, the system draws in hot air and cools it. It is then spread throughout the home. When the temperature drops, it draws in cold air and expels heat through the ducts.

A compressor converts hot, low-temperature refrigerant from your home into hot air or gas. As hot air blows out, the heated gas flows through the coil and cools. Coolant heat loss results in the formation of a hot, pressurized liquid.

The liquid flows through the evaporator coil of the HVAC unit, where it expands and cools. The air becomes cooler than the ambient air. The duct system’s heat was absorbed. Cool air is now blowing through the house. Once the cold air has been dispensed from the ducts, it is returned to the compressor coils to restart the cycle.

How Does A Furnace’s Heating Process Work?

From Filtration to Combustion:

During combustion, outside air enters the system through another vent. When air and heat combine, it is heated and distributed through ducts. Filtration is required to remove unwanted dirt and dust before it becomes trapped in the furnace plenum.

Filtration and Absorption:

The hot air is sucked in by a blower and blown out through the duct. A clean, well-maintained fan is required to keep your furnace running efficiently. Furthermore, the air system distribution ensures that the thermostat is set to the correct temperature.

Smoke exhaust pipes help to keep the air clean and safe. Toxins from smoke and combustion products such as carbon monoxide are removed. The vent opens and closes to keep potential hazards out of your home.


Finally, HVAC systems allow heated air distributed throughout the home via ducts. As a result, the duct must be clean and free of debris obstructing airflow. Furthermore, the air in the furnace is filtered, making it cleaner and purer. This is a critical component of his HVAC system for eliminating odors and allergens.

It also lessens the burden of housework like cleaning and cleaning. Once the temperature has been set, the process will be paused until the next heating is required. Some stoves include built-in humidifiers that add moisture to the heated air before it enters the duct.

Air Conditioning Furnace:

For air-conditioned stoves, it begins in the evaporator coil of the air conditioner. It extracts heat from the air and then humidifies it. The excess moisture is then drained. The compressor generates heat in the evaporator coil by using refrigerant. As an additive, cold air is blown into the furnace to provide moisture and cooling. Finally, the cold air is routed through filters to the various living areas via ducts.

What if My Appliance Lacks a Coil?

The evaporator coil is next to the furnace warmth exchanger within the cooling and heating machine cabinet. Warm air flows into the coils and into the air distribution ducts when the furnace is turned on.

  • The evaporator coil is made up of copper tubes that form a small community. This allows air to float in. When the air conditioner is turned on, dust, dirt, and mildew accumulate at the coil, obstructing air float.
  • Dirty coils degrade the overall performance and efficiency of your heating and cooling system. It has the following negative effects when there are no coils inside the furnace: Wear and tear – insufficient airflow adds to the workload of the heating machine. This will cause the furnace components to fail.
  • Less warmth – as the machine deteriorates, the temperature may drop. This large drop will initiate the transfer and shut down the device, leaving you cold. This may be uncomfortable for you.
  • Increase energy – To reach the desired temperature, the furnace must double its output. As a result, the extra energy will be consumed while the airflow is restricted. However, you may no longer need to disappoint your wallet.

Keep in mind that the coil is delicate and inaccessible. Leave it to the expert’s or skilled technician’s hands. They are the ones who understand safe elimination and proper coil cleansing.

Also check: Air Filter Fell In Furnace – What To Do?

Simple Steps for Cleaning the Coil:

Here are the quick steps for coil cleaning.

  1. First and foremost, safety. Turn off the furnace and work up to the thermostat, breaker, and principal transfer.
  2. Disassemble the blower compartment.
  3. Gently ease the coil with your hand using a soft and easy towel. You can also use a gentle brush to soften the coil tubes.
  4. Clean the condensate pan and the blower compartment. You can also use a cleaning agent to remove dust and dirt easily.
  5. Replace all of the parts and turn on the power.


Even an antique or new furnace must have a coil. The coil is an important aspect of a furnace that every homeowner should be aware of. The furnace performs poorly within the cooling or heating machine if the coil is missing.


About Author

Mobeen Shahid

Mobeen Shahid

Mobeen Shahid is a Mechanical Engineer with two years of experience in the HVAC industry. His passion is analyzing HVAC issues, and he works relentlessly to devise customized solutions. He has been in the industry long enough to know the ins and outs and ensures that areas are optimally heated, cooled, and ventilated.

Recent Posts

The Best Basic Home Tools kits


Stay updated on HVAC insights. Subscribe now!