It’s Nifty Being Fifty

duct cleaning









50 years old or 18,250 days young!

50 years ago Power Vac began an epic journey that would ultimately bring our company to the forefront of the Duct Cleaning Industry.
We are humbled as we look back at the journey we have taken. At the same time, we realize how profoundly indebted we are to our loyal customers and partners . We could not have reached this important milestone without your commitment to the company. So we are honored to celebrate this anniversary with you .

We are grateful for the opportunity to serve and we look forward to serving customers for the next 50 years and beyond.

Thank You

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Air Conditioner Freezing Up

Air Conditioner is Freezing

Freezing of your AC coil occurs when the refrigerant inside a central air conditioning unit falls below 32 degrees Fahrenheit, Canadians would measure it as 0 degrees Celcius. What is actually happening is the humidity that surrounds the coils is freezing up. The coils become encased in ice and the air conditioning unit fails to cool the home properly. Once you’ve thawed the coils, you have several options before calling a repair person to fix the unit. Just be sure to turn off the air conditioner first. Running the unit with the coils iced over can strain the compressor and cause major damage to the unit.

Usually Coils freezing up means low air flow or a slight undercharge of refrigerant. Low air flow is the most common. It could be a result of a dirty filter, dirty ductwork, damaged evaporator coil, restrictions in the ductwork or even a mismatched system where the outside unit is to large for the evaporator coil inside the furnace.

Thawing the AC Coil

Don’t be tempted to help the thawing process by removing chunks of ice by hand, resist that temptation. The coils and cooling fins in the evaporator portion of the central air conditioner can be easily damaged. Ice clings tightly to these components, and forcefully removing it can bend fins or rupture the coolant lines. It is a good idea to turn off the power to the the air conditioner and the fan on the furance. You do not want water to drip down into the furnace and possibly damage electrical component boards inside the furane . Thawing may still take several hours.

Possible Quick Fixes

One of the first things to check is the filter. If they are dirty or clogged, replace them with clean ones. Another cause of restricted airflow occurs when too many supply registers are closed. Check all the rooms in the house and make sure the supply registers are open. Clogged and dirty cooling fins in the frame that surrounds the coils might strain the system enough to cause icing. If outside air temperatures fall below 60 degrees Fahrenheit, 16 degrees Celsius most central air conditioners do not work properly. Consider shutting the system off when temperatures fall below 60 degrees.

Topping Up Refrigerant

This is not a Do It Your Self Job. Call your local qualified service technician to check and refill refrigerant. Air conditioning repair people understand how to work with the pressurized refrigerant system and will be able to quickly determine which type of refrigerant your system needs.


Cleaning The Ductwork

Frequently when Power Vac is cleaning ductwork we do find blockages in the evaporator coils inside the furnace. Blocked coils are a result of the fins of the evaporator coil getting plugged up . The close spacing of the aluminum fins on an evaporator coil makes it easy for dirt, dust and other debris to stick. Lodged debris causes blockages, affecting the overall performance and efficiency of your air conditioning. Air flow across the coil becomes blocked, degrading heat transfer. Blockages come in the form of build-up from skin cells, fabric fibers, pet hair, grass clippings, tobacco smoke, pollen, mud, rust and bacteria.


Dirty AC Coil

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Is Window Condensation a Problem

condensation on the window

What Is Condensation?

Is your Window glass “sweating” in the winter . Is water beading or ice forming on the inside surface of your windows?

Don’t be too quick to blame the windows! There’s a good chance that what you are seeing is condensation,
a sign that there is excess humidity in your home. Humidity – water vapor mixed with air – is drawn to
the coolest surfaces, such as your window. Condensation problems arise because air can hold only a limited
amount of water vapor at any given temperature. Cold air can hold less water than warm air.

Cool air cannot hold as much moisture as warm air, so windows and doors often collect this moisture and make it visible.

Sources of moisture

The principal sources of water vapor in today’s homes vary with lifestyles but the following is just a small list
of normal daily activities and the water vapor they introduce per day.

Cooking (three meals a day) 3-4 lbs
Dishwashing 1-2 lbs
Shower or Bath 1-2 lbs
Weekly Laundry 30 lbs
Occupancy (family of four) 12 – 15 lbs


What Can we do to reduce moisture in our  home

More and more of us are living in “air tight” homes, they are more economical to heat and cool and easier to keep clean but we
have created another problem and that is lack of air exchange and moisture traps. Since the moisture levels are not able to
escape we must take steps to reduce humidity in our home

  1. Reduce Moisture Sources
  • Stop or severely limit the use of humidifiers, or adjust them to the appropriate setting
  • Run a dehumidifier if needed.
  • Limit plants, aquariums, and pets. If you have a lot of  plants, don’t overwater them and you should
    put them in a sunny area.
  • Make sure that your clothes dryer is properly vented outside.
  • Malfunctioning gas appliances can deliver excessive water vapor into the air along with more dangerous
    contaminants. So have your appliances check regularly
  • Eliminate plumbing leaks.
  • Don’t air-dry clothes indoors.
  1. Increase Ventilation
  • Open your windows everyday  for a few minutes , particularly after steam-producing activities
    such as showering/bathing, laundry, and cooking. You will only loose a small amount of heat
  • Run kitchen, bathroom, and other fans longer and more often.
  • Improve or add a ventilation system in your home through attic, roof and soffit venting.
  • Open blinds and drapes. Heavy window coverings restrict the flow of warm air over the interior glass surface.
  • Operate ceiling fans to improve air circulation in your home


In most cases you can reduce window condensation by addressing  high humidity and condensation through
reducing the amount of humidity generated in your home. By providing your home with the proper level of humidity,
you are on your way to providing  healthier  Indoor Air Quality in your home.

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cleaning ductwork after renovations

Air Duct Cleaning After Renovations

cleaning ductwork after renovations



Should you clean your ductwork after a renovation

Should you invest your money in Air Duct Cleaning after completing your home renovation or home remodeling project? Customers frequently ask this question after a renovation project (bathroom remodel, kitchen remodel, finishing the basement ) or any other extensive remodel project where a lot of dust has been created. Power Vac always recommends it, because it can only help improve the home’s air quality, especially after a large renovation project that can create a lot of construction dust. If you suffer from allergies, it should be strongly considered
If you are moving into a newly constructed house, and have doubts about the diligence of the construction crew, duct cleaning can be useful. Drywall dust, fiberglass pieces, and sawdust have no place in ducts. Duct cleaning will also catch the odd occurrence where lunch bags or soft drink cans have fallen or been swept into the  duct system. For similar reasons, duct cleaning may be advisable for older houses following large renovation projects.

It’s always a good idea to have your ducts cleaned after a major renovation . Ripping down cabinets, tearing up old flooring, installing new electrical and drywall…it all creates a lot of nuisance dust and debris. Even when you cover the vents, bits and pieces of construction material can make their way into the ductwork.

Power Vac recommends that the homeowners inspect their air ducts to see if they look dirty. This is just a basic test, but if the air ducts in your home look dirty, you should call a reputable air duct cleaning company like Power Vac . Do your homework when deciding on a duct cleaning contractor. Make sure that that you check out the air duct cleaning company to ensure that they have the right equipment and have a solid reputation in the industry . Look for a NADCA Certified contractor. NADCA members work in accordance with the Association’s ACR Standard, which provides guidance on the proper and safe techniques required during HVAC Inspection, Maintenance and Restoration procedures.

The Benefits of Duct Cleaning after renovations

  • The first major reason a homeowner should invest in a Professional Duct Cleaning service, is that it improves Indoor air quality the home, which is great for people  suffering from allergies and asthma.
  • The second major benefit of Air Duct Cleaning after a remodel project is that air duct cleaning removes, dust, chemicals and contaminants from the HVAC System.
  • The third major benefit of Air Duct Cleaning after a remodel project is the impact on energy savings for the home. When your HVAC is clean, the system does not have to work as hard to maintain a room’s temperature, this requires less energy use, resulting in energy cost savings.

“According to the U.S. Department of Energy, 25 to 40 percent of the energy used for heating or cooling a home is wasted. When contaminants are in the heating and cooling system, it can shorten the life of your system by requiring it to work harder, even with using filters”

If you are in the pre planning stages of your renovation project, give us a call . We would be happy to provide you with an estimate that you can carry in your renovation budget. If you are finished your renovation and the dust levels are unmanageable we would be happy to schedule a service call. Remember when dust is a dirty word, you need Power Vac today!!!

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Pet Dander in the Ductwork

duct cleaning toronto

Pet Hair in the Duct work can create Indoor Air Quality Issues

Many people young and old suffer from respiratory illnesses such as allergies or asthma. Asthama today is a common problem  It is also  estimated that 10 to 15 percent of this number overall is allergic to dog or cat dander. Most of us have our furry friends living indoors, this is extremely significant to the air quality of your home. Pet dander accumulates inside of your heating, ventilation, and air conditioning system , forcing the allergens to be released throughout your household when the furnace cycles. This in turn causes the air quality in your home to deteriorate.

Contrary to popular belief, pet dander is not animal hair. Dander is tiny flakes of skin, and is produced by each and every animal. This is the part that most humans are allergic to.

It is very easy to remove pet dander from your cat or dog. Regular bathing and brushing are all that is needed to do away with those pesky dander flakes.

There are a few things that you can do to help improve the quality of air in your home, and get rid of pet dander and irritating allergens. Many find it takes a combination of these methods to eradicate the problem permanently. It may take a few attempts before the situation is finally resolved.

Hepa Air Cleaners Remove Pet Dander from your environment

Adding HEPA air cleaners to your HVAC system can assist in eliminating allergens from the air. If you have a high efficiency furnace you should set your fan to auto or on, this will allow the fan to move air continuously, cleaning your air and removing viruses, dander, and bacteria.

Cleaning Your Forced Air System in an ideal way of removing Pet Hair and Dander

Pet hair , dust ,lint and other debris tend to buildup on furnace motors and fans. Once these contaminates accumulate, it drastically decreases the air quality in your home. It is necessary to the effectiveness of your furnace system, and helps to properly heat and cool the home and prevent expensive repairs.


Cleaning Ducts Can Help Rid of Pet Hair &  Allergens and Help Improve Air Quality in Your Home

As we operate the forced air system in our home, animal dander and other debris become lodged in the duct work and HVAC components . As these contaminates accumulate over time, your duct work is an optimum breeding ground for mold, bacteria  and fungus. Each time the system is switched on, these spores are ejected out and circulated through your home. Those who suffer from respiratory problems are especially prone to the effect of these contaminates.

By doing duct cleaning in your home every  3 to 5, your household’s IAQ can be greatly  improved. Cleaning the duct work can also help lessen the HVAC system operation time, resulting in lower heating bills, and restore the overall capacity of the system

duct cleaning


Here is a picture taken from inside the ductwork.  This is a typical example of pet hair and pet dander

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Do I Need A Furnace Humidifier

Furnace Humidifiers

A Furnace Humidifier should be a required component of your heading system.  A  humidifier installed directly into your cooling and
heating system will introduces humidity in the form of water vapor into the air that travels through heating ducts. The level of humidity
is then monitored and controlled by your thermostat, just like the temperature is, and an even level of moisture can be released into your
house all year long.

The Advantages of  a Furnace Humidifier Include:

  • Reduced static electricity
  • No more dried out nasal passages
  • Reduced susceptibility to colds and flu viruses
  • Fewer respiratory-related problems
  • Financial benefits (reduced heating costs)
  • Houseplants survive longer
  • Hardwood floors crack less


What To Know Before you Buy 

Compare Different Types of Units

Furnace humidifiers come in three basic designs, with each offering its own set of benefits and drawbacks. Drum-style units are the most
affordable, but also require the most maintenance according to Flow-thru models help to prohibit mold growth,
but require a built-in floor drain for proper drainage. Spray mist humidifiers are efficient for use with oil or gas-powered
furnaces, but are not intended for use in electric furnaces.

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duct cleaning toronto

The Importance of furnace filter changes


duct cleaning toronto


As we get ready for winter, there are many things to do in the yard as well as in the house.  One of the important tasks that is often overlooked is replacing the furnace filter.  The main purpose of a furnace filter is to protect the blower fan and equipment  from all the dust, hair and other gunk the return duct pulls in.


Why is it so important? Here are five benefits of regularly replacing your air filter:


  • Extend the life of your forced air system – a big investment was made when you purchased your HVAC equipment.  One of the main reasons a HVAC systems fails is because the furnace filter gets plugged up with debris and particulate matter . As dirt accumulates, air can’t pass through the system  and the unit overheats. The motor then has to work harder. In a best-case scenario, your HVAC unit will need to be repaired. In the worst case, if your unit is older, not replacing filters could put it over the edge and require you to buy a new one. Replacing the filter is an easy way to lengthen the life of your heating system.
  • Keeping energy costs under control – lets face it, getting your utility  bill is not the highlight of your month. When that air filter is plugged ,little air passes through the filter which makes the HVAC system work harder, more energy is being used. And when it requires more energy to make your heating and air conditioning system work, it causes your energy bill to escalate .
  • Maintaining healthy air quality in your home – This is particularly important if anyone in your family suffers from allergies or asthma. Dirty air filters worsen the air quality and can worsen symptoms. Replacing your furnace filter is an easy way to help improve the indoor air quality in the home .
  • Keeping your HVAC system clean – Dirty filters in the furnace can lead to dirt build up on fan which reduces air flow.  It can also contribute to the AC coils in the furnace to become plugged up. When this happens the air flow is greatly restricted.
  • A peace of mind – Replacing your furnace  filter is an easy, inexpensive step to take to save money, extend the life of your HVAC equipment and improve your IAQ in your home or business. It also decreases the amount of your energy consumption .
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Fresh air makeup system

Air Make Up Systems

Call Power Vac Winnipeg for your Commercial Duct Cleaning Needs


This video will show how a standard make-up air ventilation system works and the benefits of preventive maintenance on this
critical system in your building. You will see a professional tradesperson carry out a typical preventative maintenance call,
as well as some simple tasks that your staff can perform to keep your make up air unit running properly.

Let our HVAC inspectors conduct a comprehensive examinations of components and systems to determine whether they are
contaminated with a significant accumulation of particulate or microbial growth, or if HVAC performance is compromised
due to contamination build-up.

PREVENTION of duct contamination is KEY to avoiding problems.
Follow these recommendations to avoid system contamination:

•Perform routine preventive maintenance on HVAC
systems, by complying with manufacturer schedules
for changing HVAC filters, cleaning coils, and other

•During building renovation, seal ductwork to prevent
construction dust and debris from entering the HVAC

•Maintain good housekeeping in occupied spaces.

•Ensure that air intakes are located away from
contaminant sources.

•Consider routine inspections of ductwork. The National
Air Duct Cleaning Association (NADCA)’s standard,
“Assessment, Cleaning and Restoration of HVAC Systems-
ACR 2013,” recommends that HVAC systems be visually
inspected for cleanliness at regular intervals, depending
on building use. For healthcare facilities, the standard
recommends annual inspections of air handling units
and supply/return ductwork


Power Vac is known as the Winnipeg Duct Cleaning & HVAC remediation experts


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Choose a NADCA certified contractor

picture of poer vac duct cleaning truck

Choose a NADCA certified duct cleaning contractor for
your next HVAC Remediation project


NADCA members work in accordance with the Association’s ACR Standard, which provides guidance on the proper and safe techniques required during HVAC Inspection, Maintenance and Restoration procedures.

At least one employee of each NADCA member company must receive NADCA’s Air System Cleaning Specialist (ASCScertification and maintain this certification with Continuing Education Credits each year. NADCA also offers a Certified Ventilation Inspection (CVI) certification.

A majority of NADCA members have been in business many years, and possess the knowledge and experience necessary to perform to the highest standards. Members also have significant knowledge of the tools and equipment that are necessary
for each particular job. NADCA members are truly committed to our industry.


The benefits

Choosing a NADCA-member contractor for your next duct-cleaning job positions you for success. Identifying a local duct-cleaning contractor who holds membership with the association to perform the job offers you unique advantages:

  • High standards. When you work with a NADCA-qualified contractor, you can trust that the business places importance on proper
    education and training for its’s of its technicians, and on following industry standards for cleaning, restoration and assessing the HVAC system.
  • Ethical work practices. To become a member of the organization, contractors must agree to adhere to the organization’s Code
    of Ethics, which supports honoring the customer’s time and investment, as well as adhering to best practices for cleaning.
  • Protection. Members must hold liability insurance as a form of protection for consumers should something go wrong on the job.
    You should never hire any type of contractor that doesn’t hold liability insurance .
  • Certification. At least one person employed by the contractor must be trained by the organization and then certified to
    perform the various tasks associated with cleaning ducts in order to become a member. This practice ensures that the right
    information and training gets passed along to other technicians in the company.
  • Comprehensive cleaning. The organization also requires that contractors agree to follow their cleaning and restoration
    practices for the entire HVAC system, not just the ductwork.
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Power Vac Tools of the trade

Power Vac Tools. Our Contamination Unit

Power Vac commercial duct cleaning services provide HVAC remediation
services in health care facilities. The increased focus on infection
control standards today requires a reliable contamination solution
that can be deployed quickly.

Our EDU portable containment unit provides temporary containment of
airborne particles during normal facility operations. It provides
isolation while allowing the operation of the facility to continue to
operate undisturbed.

As our industry progresses, Power Vac continues to invest in new
technologies and training. We are Canada’s national duct cleaning
company with offices from coast to coast. For additional information
contact the office nearest you

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