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How Much Do Dirty Coils Cost You?

The short answer is PLENTY! Dirty coils, or anything that blocks the free flow of air into or out of the evaporator and condensing units can cost you in several big ways:

It will cost you more in electrical energy to run all of the system’s components longer and harder, especially the compressor.
Your refrigeration system may not be able to keep up and a too high temperature may prompt you to call for expensive emergency service.

Your equipment may fail prematurely due to the increased strain dirty coils place on its operation. Refrigerant can return to the compressor as a liquid and cause it to fail due to “slugging”. Replacing a compressor is a capital expense that you would probably want to put off until another day.
Unfortunately, cleaning evaporator and condenser coils is one of the most overlooked maintenance jobs there is. Although your coils are always getting dirtier, even right now as you read this, it is much easier in the short run to just ignore the problem and hope it won’t catch up with you. However, given enough time, it always will. The longer you go between coil cleanings and the dirtier they get, the more it can cost you. It is much smarter and cheaper in the long run to institute a regular preventative maintenance program with coil cleaning being one of the top priorities. How often is regular? Cleanings should certainly happen at least yearly and perhaps more often, depending on how dirty the environment is in which the coils are operating.

Having clean coils makes your system more efficient. Evaporator coils pick up heat from the air circulating inside the building. Condenser coils transfer that heat to the air outside the cooled space. Just by having the evaporator and condenser fans operating and pulling air through the coils, dirt and dust is deposited on them. Dirt and dust are poorer conductors of heat than bare metal, so it takes air passing through dirty metal fins that are attached to the coils of the evaporator and condensing heat exchangers for a longer time to exchange the same amount of heat as clean fins. Dust, especially, can build up over time and reduce the spaces between the fins, so that less air is able to pass through the fins with the same amount of fan power. Let the crud build up as badly as the condenser shown above which is just like an evaporator coil covered with frost that chokes off the airflow, the efficiency of your system will suffer due to increased compressor and evaporator run time.

Without accurately testing the electrical energy going into and the heat coming out of your particular refrigeration system, before and after a coil cleaning, it is impossible to state for certain how much those dirty coils are costing you. Based on such testing of several randomly selected residential and commercial systems industry studies estimate that dirty condenser coils alone are costing the owner of a typical commercial refrigeration unit between $220 and $625 a year in electric energy waste. Assuming an average of $400/unit/year that amounts to a total of $9.7 billion annual loss for the estimated 27 million commercial systems in the U.S. That’s a lot of wasted energy and money!

Many energy-related organizations warn of the danger of neglecting coil cleaning. The U.S. DOE advises that “a dirty condenser coil can increase compressor energy consumption by 30 percent.” and recommends inspecting coils a minimum of once per year. Pacific Gas & Electric (PG&E) also suggests an annual coil cleaning to its commercial customers as part of its ongoing efforts to promote energy-efficient HVAC-system operations.

The Federal Energy Management Program (FEMP) did a study that had some specific findings: “A dirty condenser coil that raises condensing temperature from 95°F to 105°F cuts cooling capacity by 7 percent and increases power consumption by 10 percent, with a net (compressor) efficiency reduction of 16 percent. In a 10-ton unit operating 2,000 hours a year, this wastes about $250 per year in operating costs. A technician can clean the condenser coil in about 1 hour, which typically costs about $150. In this example, the payback takes just over 7 months.

To make matters worse, dirty condenser coils are perhaps even less than half the story. That is because there are two types of heat exchangers in almost all refrigeration systems that collect dirt from the air passing through them: condenser coils, located outside the cooled space, and evaporator coils, located inside the cooler. Evaporator fans usually run all of the time, or about twice as much as a typical condensing fan, so they have twice the amount of time to collect dust and dirt from the air passing through the fins. And, unlike air conditioning systems, evaporators for refrigeration systems do not have filters that can be replaced, so the dirt builds up on, and in between, the coils and fins themselves.

While also delivering less air, all types of evaporator fan motors themselves consume more energy whenever the airflow is constricted. The Northeast Energy Efficiency Partnership (NEEP) performed tests in which the airflow through an evaporator unit’s coils was blocked in varying amount by sheets of styrofoam to simulate blockage by dirt and dust, frost, or boxes of product stored too close. They found that an old-fashioned shaded pole motor’s used 104 watts when air flowed freely through the unit, but that it increased 20% when they completely shut off the flow of the air, like what one might see with a totally frosted evaporator. An energy-efficient ECM evaporator motor of the same size fared even more poorly, relatively speaking, by burning 43 watts with clean coils and 60% more, or 69 watts, with the styrofoam covering all of the coils. Blocking the airflow in by 75% and an ECM used 23% more energy. Even blocking the flow of air out of an evaporator by only 50% increased the power consumption of either kind of motor about 16%.

What can we advise from this data?

Raise the evaporator temperature by efficiently moving as much air through the evaporator coils. This can be done by regularly (at least annually) cleaning the evaporator coils, straightening any bent fins, being sure that the coils are completely unrestricted, and not blocking the flow of air into or out of the evaporator.
Lower the condenser temperature by efficiently moving as much air through the condenser coils. This can be done by regularly (at least annually) cleaning the condenser coils, straightening any bent fins, and not blocking the flow of air into or out of the condenser.

So the question is: When was the last time you had your coils cleaned?
CALL SAFETY KING TO CLEAN YOUR COILS AT 1-800-AIR-DUCT or 1-800-247-3828

AC Coil Cleaning

A Flashback to the Foundation of NADCA

Our Founder and Visionary Michael Palazzolo poses with other Presidents of NADCA at the 30th Annual Meeting in Nashville Tennessee this past week. After 31 years Safety King is the only founding member company left at NADCA.

Flashback to earlier this week when all of the past NADCA presidents who were at the 30th Annual Meeting stood in front of the timeline! #NADCA19 #memorylane #pastpresidents

Posted by NADCA: The HVAC Inspection, Cleaning and Restoration Association on Friday, April 5, 2019

How has Safety King Stood the Test of Time?

If you live in Michigan, Safety King, Inc. is the most reputable air duct cleaning company around! Safety King has 50 years of experience in the duct cleaning industry and has been training other duct cleaners internationally since 1985. Safety King also provides complimentary before & after pictures so you can see exactly what you are paying for. If you live outside of Michigan, you can go to NADCA.com to find a certified duct cleaner near you.


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Award reflects consistently high level of customer service

Utica, MI. 4/12/19 – Safety King Air Duct Cleaning Inc. is proud to announce that it has earned the home service industry’s coveted Angie’s List Super Service Award (SSA). This award honors service professionals who have maintained exceptional service ratings and reviews on Angie’s List in 2018.

“Service pros that receive our Angie’s List Super Service Award represent the best in our network, who are consistently making great customer service their mission,” said Angie’s List Founder Angie Hicks. “These pros have provided exceptional service to our members and absolutely deserve recognition for the exemplary customer service they exhibited in the past year.”

Angie’s List Super Service Award 2018 winners have met strict eligibility requirements, which include maintaining an “A” rating in overall grade, recent grade and review period grade. The SSA winners must be in good standing with Angie’s List and undergo additional screening.

“Safety King is honored to receive 2018’s Super Service Award from Angie’s List. Each continued year of award-winning service in the field of air duct cleaning brings us pride. Our high quality service is thanks to 50 years of experience and customer feedback.”

Service company ratings are updated continually on Angie’s List as new, verified consumer reviews are submitted. Companies are graded on an A through F scale in multiple fields ranging from price to professionalism to punctuality.

For over two decades Angie’s List has been a trusted name for connecting consumers to top-rated service professionals. Angie’s List provides unique tools and support designed to improve the local service experience for both consumers and service professionals.


Safety King has been a provider of air duct cleaning services in southeast Michigan in the USA since 1969. You can reach Safety King by phone at 1-800-AIR-DUCT, and by email at info@safetyking.com.

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Curious if the benefits of air duct cleaning are worth the price?

It is understood that air duct cleaning isn’t a cheap procedure, but is it worth the price? The prevailing benefits of air duct cleaning include an increase in air-flow efficiency and improved life-time of HVAC equipment. This means you will spend less in the long-term on energy bills and HVAC system repair. A thorough air duct cleaning will pay for itself while also improving the airflow balance of your home and decreasing the amount of dust that comes from the ducts and settles on furniture. So air duct cleaning is worth it – if you hire the right company.

Beware of Duct Cleaning Scams

How does one identify the “right company” for air duct cleaning? Due to the nature of air duct cleaning as a service, it can be difficult for the average homeowner to directly see the improvements, so there is a justified skepticism when homeowners are told that an area of their home that they have never seen was dirty before the service and is now clean.

If you think you’ve found a cheap air duct cleaning, do your research into the business. If a business quotes an air duct cleaning to be less than $300, there will usually be one of two catches: either the price will increase after the service begins or the service isn’t a complete air duct cleaning.

A reputable air duct cleaning company will send a National Air Duct Cleaners Association (NADCA) Certified technician who can give you a firm price before they begin working and will spend 2-4 hours in multiple areas of your home. A less competent air duct cleaner will not be NADCA certified, will only spend around an hour, charge more than what you were initially quoted, or will just be a person with a portable shop-vac. Like most products and services, you get what you pay for.

When to Have Your Ducts Cleaned

If you are having a lot of home maintenance done, particles like carpet fibers, drywall, saw dust, etc. will end up in your home’s air and air ducts. Because air ducts are out of sight and difficult to access, they should be the last step of your home maintenance projects.

To maintain the benefits of air duct cleaning, it is recommended you have them cleaned every 3-5 years. This will depend on how many people live in the home, if any residents have asthma, the number of pets in the home, recent construction projects, and other factors like fire or water damage.

Who Should Clean Your Air Ducts

When gathering information to set up an air duct cleaning, be sure to ask about the technician’s certifications. Make sure the business is registered, insured and see if it has a good or bad reputation online. A little extra research on your part could save you from wasting money on an inadequate service.

If you live in Michigan, Safety King, Inc. is the most reputable air duct cleaning company around! Safety King has 49 years of experience in the duct cleaning industry and has been training other duct cleaners internationally since 1985. Safety King’s founder is also one of the founding members of NADCA and Safety King has a NADCA certified technician on every jobsite. Safety King also provides complimentary before & after pictures so you can see exactly what you are paying for. If you live outside of Michigan, you can go to NADCA.com to find a certified duct cleaner near you.


 

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Award reflects consistently high level of customer service

Utica, MI. 3/5/18 – Safety King Air Duct Cleaning Inc. is proud to announce that it has earned the home service industry’s coveted Angie’s List Super Service Award (SSA). This award honors service professionals who have maintained exceptional service ratings and reviews on Angie’s List in 2017.

“The service providers that receive our Angie’s List Super Service Award have demonstrated the level of excellence that members have come to expect,” said Angie’s List Founder Angie Hicks. “These pros have provided top-notch service to our members and absolutely deserve recognition for the exemplary customer service they exhibited in the past year.”Angie's List

Angie’s List Super Service Award 2017 winners have met strict eligibility requirements, which include maintaining an “A” rating in overall grade, recent grade and review period grade. The SSA winners must be in good standing with Angie’s List, pass a background check, record a current trade license attestation and abide by Angie’s List operational guidelines.

 

“It is an honor to receive yet another Super Service Award from Angie’s List. We’re happy to have provided another year of award-winning service in the field of air duct cleaning and we look forward to the next. Thank you for all of the feedback that has helped us maintain and surpass our standard of quality.”

 

Safety King has been listed on Angie’s List since 2007. This is the 8th year Safety King has received this honor.

Service company ratings are updated continually on Angie’s List as new, verified consumer reviews are submitted. Companies are graded on an A through F scale in multiple fields ranging from price to professionalism to punctuality.

For over two decades Angie’s List has been a trusted name for connecting consumers to top-rated service professionals. Angie’s List provides unique tools and support designed to improve the local service experience for both consumers and service professionals.


Safety King has been a provider of air duct cleaning services in southeast Michigan in the USA since 1969. You can reach Safety King by phone at 1-800-AIR-DUCT, and by email at info@safetyking.com.

 

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Lasting improvements in air quality for 10 years guaranteed

A home’s air duct system is a lot like its plumbing system. They both run throughout the house and both can have a expensive leaks. The difference is that a leaking water pipe will let you know its leaking but a leaking air duct system will continue to cost you money for years without apparent evidence. While it’s not apparent, the evidence can exist in the form uneven room temperatures, allergies, and increased energy expenses.

According to the U.S. Energy Information Administration, nearly 50% of the average home’s utility bill is spent on heating and air conditioning. If you have any leaks, you could be significantly overpaying.

HVAC Professionals can spot and manually seal air duct leaks where ductwork is visible but a lot of ductwork is concealed in walls, floors, and ceilings. Aeroseal is a method of diagnosing a home’s air duct leakage throughout the duct system and then sealing the leaks from the inside. Sealing air ducts from the inside removes the need for an HVAC professional to make expensive cuts into your walls to seal those concealed ducts.

Aeroseal’s Development

The technology for sealing air ducts from the inside was invented in 1994 and has steadily developed into the best duct sealing solution available. The technology was patented in 1996 and 1999 and has continued to be upgraded since.

In 2000, The Department of Energy (DOE) and its Citizen Judges selected Aeroseal in the 100 best scientific and technological accomplishments to come out of the 23 years of the DOE’s existence. The same judges put Aeroseal in the top 23 technologies that have the largest potential to save consumers money and improve their quality of life. In 2017, Aeroseal is on its way to becoming an industry standard for optimizing air duct systems.

Aeroseal on This Old House

Aeroseal was featured on PBS’s professional home improvement show, “This Old House” where they detail how the process works and the benefits of sealing air ducts from the inside. Click the video to the right for a brief introduction to Aeroseal.

Evidence of Leaks

There are a few ways to tell if your ducts might be leaking. The most common reason people request Aeroseal is because they are experiencing uneven temperature distribution in their homes; rooms on one side of the house are much colder or warmer than the rest of the house. This happens because the heated or cooled air is leaking throughout the ductwork instead of being delivered to those rooms. Sealing leaks will improve system pressure so the conditioned air is distributed more evenly throughout the house.

Another reason Aeroseal is often requested is to solve allergies. Leaks in air ducts can result in air leaving ducts where it shouldn’t, but they can also result in air entering where it shouldn’t. Air duct systems usually run through a home’s attic, basement, or crawlspace and throughout its walls. If air is entering the duct system from these places, then dust and allergens are pulled in with it and distributed throughout your home. Aeroseal will prevent any air from entering or exiting the duct system where it shouldn’t.

The benefit of Aeroseal will become the most evident when energy costs decrease. If the air temperature is inconsistent  throughout your house, the HVAC system will activate more often to compensate for the misplaced air. HVAC systems running longer and more often can waste a significant amount of energy each year. After leaks are sealed, HVAC systems will run less to move the same amount of air, saving homeowners up to 40% on energy. With these savings, Aeroseal can quickly pay for itself and is guaranteed to keep your ducts sealed for 10 years.

How does it work?

The Aeroseal process is simple. Air vents and registers are blocked with a specialized masking tape to prevent airflow. With all registers blocked, the system’s air is forced to exit through leaks. The Aeroseal tool detects how much air is being lost through leaks to determine the rate of leakage in the duct system.

Once leakage is tested, aerosol sealant is injected into the duct system. This sealant is designed to remain a vapor until enough particles are forced toward small gaps to begin accumulating. The particles adhere and gather until air can no longer get through and the gap is sealed.

The whole process is computer monitored and afterwards, a computer generated analysis is printed for the customer. This analysis will clearly illustrate the reduction in leakage throughout the process. See examples of this from recent Aeroseal sealings below.

“We had Safety King Aeroseal the duct work. Wow!! Now our furnace and AC run more efficiently and less often, which translates to lower utility bills and $$ saved.” -Susan, Warren MI

If you’re interested in having your air ducts sealed tight, click the button below or call us at 1-800-Aeroseal for more information!

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