uv light for furnace

The Germicidal or UV light for furnace used heating system is utilized to destroy the DNA of viruses, germs, or mold spores. They also kill fungi and bacteria when they move across the furnace and HVAC systems of air handling. A well-placed UV light can be very efficient in killing nearly 100 percent of the harmful pollutant. Installing a UV light for the furnace & HVAC system inside the condensing and heating unit of your system or the air handler provides an efficient and cost-effective way to cleanse every inch of air as it traverses the system.

How does UV light for a furnace work?

UV lights used in furnace units are specifically designed to utilize the specific wavelength of light, 254 nanometers, absorbed by microorganisms’ DNA. When exposed to UV light, organisms cannot make the proteins required for survival. While the UV light may not kill the bacteria immediately, it eliminates their ability to cause harm and reduces their lifespan significantly.

Why install a UV light for the furnace system?

The amount of air in your home is enormous. Making it suitable as a whole is almost impossible since UV light sources can cause harm to humans. Within your air handler, it’s an entirely different matter. The heating and cooling system draws air inside its Evaporator unit before forcing it out via air registers, also known as vents. That is located within your home. Installing the UV lamp inside your furnace and evaporator unit is a perfect sense since the air will pass over the UV light while it circulates.

What are the limits of UV lights?

The UV lights for the furnace cannot alleviate the allergies because dust and dead fungi will remain present. In addition, if the furnace and cooling system are damaged or leaky ducts or pipes, the vacuum created by the ducts can bring in new contaminants from crawl spaces and attics and limit the UV light’s efficiency. The UV light can only be adequate when microorganisms contact its light spectrum. Any of the mentioned contaminants shielded by its light spectrum will not be affected.

How can you tell whether my UV lamp is still functional?

Keeping a UV lamp on after three years is not advised. Since the UV bulb needs to be replaced and the UV system’s efficiency is no longer functional, it is best to switch it off until that happens. An old lamp’s excessive electricity consumption can overheat its power supply and perhaps bring on a total system failure.

Are UV lamps energy-intensive?

How Much Power Does a UV Light Consume? Every day, the median homeowner uses roughly 1 kWh. Thus, a single UV light bulb’s daily operating cost is between $0.10 and $0.15. You might save several hundred dollars annually if you buy ten UV light LEDs.

How to install it?

A certified technician in air conditioning is required to install UV lighting within the furnace unit in your home. The light should be connected to the HVAC unit to be activated only if the team operates. Before installing the equipment, technicians must thoroughly clean the air handler and examine any ductwork leaks. This will create the ideal environment for UV lights.

Today, energy efficient homes are built by sealing every crevice and crack to keep the conditioned air from escaping. However, this has created the ideal environment for these microorganisms. Installing UV lamps in HVAC systems can help control or eliminate harmful contaminants.

4 benefits of UV lights for your HVAC system

Ultraviolet lamps offer many advantages when incorporated into your home’s cooling and heating system. They can help keep those cold and flu viruses at low levels. The benefits of UV lights for furnaces are numerous. Suppose you’re a Puget Sound area resident concerned about how indoor air quality impacts your family’s health. In that case, there are several reasons to think about including UV lighting in your heating and cooling system.

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1. Improved Airflow

Ultraviolet C (UV-C) technology has been used in air purifiers and cooling and heating devices since around the middle of the 1990s when UV lamps were touted as a solution to improve indoor air quality. It is located inside the home. Though often a misunderstood option that most homeowners don’t even know is an alternative, UV lighting can keep microbial growth from forming on drain pans, cooling coils, and duct surfaces, ensuring that your HVAC system runs like new.

Because of this, UV lighting helps to reduce contaminants that would otherwise accumulate in your system’s ductwork. This can cause your system’s HVAC to be more demanding to stay on top. The airflow and heat exchange are dramatically enhanced by removing biofilm, toxins, growth, and other organic material within your HVAC system.

2. Improved Energy Efficiency

By adding a UV light for the furnace, you already have reduced your home’s total energy usage up to as much as 35 percent, that’s an impressive amount of savings on your energy bills. The lighting itself doesn’t conserve energy, but it can restore your HVAC system’s efficiency to the highest levels, which reduces power consumption and makes it perform as if it was new. If you think that the HVAC system in your home is responsible for the bulk of your home’s energy usage, you’ll realize the substantial savings that a UV device could provide.

3. Cost-Effective Investment

If you install UV light for the furnace to your HVAC system, it helps keep the system in good condition, which is why UV systems are highly cost-effective to modern homeowners. However, ensure that a certified technician examines your home’s needs to ensure that it’s the right place to install UV lighting. Several factors influence the effectiveness of this technology, such as the intensity and quantity of UV lamps used in the home, their location and direction, the reflectivity of the nearby surfaces, and the temperature and humidity levels.

4. Disease Prevention

One of the primary benefits of using UV lights for furnaces is that it can reduce the spread of disease and prevent your family members from becoming sick. The house’s HVAC system is designed to circulate air through the house, but the drawback is that it can also transport various airborne viruses and bacteria. Airflow is directed through the honeycomb coated with titanium dioxide matrix if the air conditioning, fan, or furnace turns on.  

Once inside, airborne pollutants are exposed to UV radiation, disrupting the DNA of airborne contaminants, making them ineffective. After the DNA has been scrambled, the contaminants are effectively killed. Oxidation Process that contains several beneficial Oxidizers. Certified Space Technology continuously protects and cleans the air and fights impurities on all surfaces.


Because the use of UV light for furnace reduces or stops the buildup of any organic material found on the radiators, drainpipes, and the interior ductwork, enhances airflow, decreases maintenance costs, and removes pathogens and other microorganisms which typically flourish in furnace systems. It’s an intelligent, healthy alternative that can be considered logical no matter your view.


  • Do HVAC UV lamps work?

UV light is highly efficient in killing mold, viruses, and bacteria if you have the right conditions and proper installation. Together, they will make your office or home facility a healthier one.

  • Do I have to install a UV light into my furnace?

It is possible to place the lights over the coil to ensure that UV lights illuminate it continuously to stop the development of mold. Lights for Ductwork Lights and Air Germicidal HVAC lights are designed to eliminate airborne allergens and pollutants that enter the return vents.

  • Does the use of UV light in furnaces is worth it?

Verdict. While UV light can aid those suffering from breathing issues by killing mildew and mold growth, The UV lights for HVAC cost a lot to install and maintain and may require HVAC repairs because of damage.