AC Fan setting and mold production - The link

You may or may not be a summer lover but one thing we're sure of; none of you is a mould lover. Unfortunately, with summer comes mould; this is almost a one comes with the other formula if necessary preventions are not taken and healthy HVAC practices are not followed. The primary cause behind the production of mould is the humidity, the level of which goes up in the summer. Although Air Conditioners do help dehumidify the indoor air, you'll be surprised to know that this does not happen on its own and the Thermostat, if not set well, can actually make the Air Conditioner a contributor to the production of mould by not allowing it to dehumidify the air while it cools it off. We'll learn today about that Thermostat setting that goes wrong and leaves homeowners in discomfort.

The complexity of Fan ON-AUTO Setting

What most homeowners do is that they set the AC Fan on ''ON'' instead of ''AUTO''. When the Fan is set on ''ON'', it does not dehumidify the indoor and as a result, the humidity level soars. Professionals suggest maintaining a humidity level between 30%-50% but as the Thermostat is set on ''Auto'', humidity can rise to an extremely uncomfortable level of 70% or more. As a homeowner, you should understand in detail how the ''ON''setting prevents dehumidification. And here's the explanation for that.

How does the ''ON'' setting prevent dehumidification

The cooling cycle that the Air Conditioner follows makes use of the indoor warm air to cool it over the evaporator coil. As the warm air is cooled, the water vapours get collected in a condensation pan and exit through the condensate drain. But this happens when the Fan is set to ''Auto'' and it shuts off automatically after the cooling cycle. This way the water vapours that get collected over the evaporator coil get time to drip in the condensation pan. But hey! Here's what happens in the ''ON'' setting. The Fan setting when set to ''ON'' lets the fan run constantly. This way the evaporated vapours are pulled along the cool air taking all the humidity back to home. So moisture ends up where it started. This is why switching from ''ON'' and ''Auto'' is a really smart thing. 

What else do I do to prevent mould?

- To prevent mould, you need to fix the humidity causing factors. In order for the Air Conditioner to dehumidify the indoor properly, the formula is; the longer it runs, the better it will dehumidify. So check if your AC is the right size. Larger than required sizes trip frequently not allowing proper dehumidification.

- You can consider installing plants, make in time use of exhaust fans and also placing a silica bag somewhere in the indoor can do wonders especially if you have a small area to dehumidify. It will suck the moisture in the air.

- Last but not the least; if your Air Conditioner fails to combat humidity whatsoever, is an old unit or does not help dehumidify for whatever reasons, consider installing a separate whole home dehumidifier.
But before you go, remember, you're supposed to never set your Fan on ''ON'' for more than a day!

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The importance of keeping healthcare’s HVAC maintained


We always emphasize on the importance of HVAC maintenance and one major reason of that emphasize is to make sure homeowners receive a risk-free heating and cooling? And what do we mean by risk-free? Well, appliances that are not maintained regularly as well as not used in the proper ways become a serious health and security risk. This danger is general but this is especially dangerous when such negligences are taken in the healthcare sector; hospitals, clinics etc. Let us discuss what dangers need to be coped in the healthcare HVAC.

High humidity and its impact on patients

We know that there is a particular level of humidity that is desirable. Anything above or down it is not suitable for health. Some researchers also draw a connection between high humidity and high chances of cancer. While high humidity affects all, it especially affects people with respiratory tracts issues. And generally, a high level of humidity becomes a severe risk for not only the patients but also those that work there or come to see patients since high humidity promotes the spread of bacteria.

Temperature fluctuation and its impact on people

It is incumbent on health care facilities to maintain a desirable as well as healthy temperature. It is for this reason that people planning to open a health facility should seriously think about their place's HVAC needs and the choices they'll make. And then, not the entire place requires the same temperature. Burn victims are in need of high humidity and a warm temperature while people with heart issues seek warm temperature with normal humidity and those with brain injuries and fever need to have cool temperatures. So these variations need to be maintained in the healthcare facility according to the particular needs of the patients. Ignoring these HVAC cares may result in sanctions and cancellation of certification.

Taking care of the healthcare HVAC systems

Just like residential HVAC systems, the healthcare HVAC also requires regular maintenance and in time repair. While some people running such facilities are regular, some other may be totally headless and the consequences of that have already been mentioned above. In order to maintain a healthy healthcare HVAC, the following practices should be followed;

- It is crucial to clean filters too often as the systems at such facilities run almost constantly

- Thoroughly clean the Air Cleaner units

- Give the HVAC system a thorough inspection and maintenance by a professional service at least annually

- Install efficient Thermostats that help maintain precise temperatures. Also, fix the Thermostat issues on an urgent basis

- Don't let water accumulate near the outdoor units. The mosquitoes (especially the ones that originate in clean water), once they are produced in water, will find their way into the inside of the healthcare facility which is once again harmful to all and especially for those already sick


Care needs to be taken whether it's a residential HVAC or a commercial HVAC. But maintaining a very appropriate HVAC system and indoor environment at the healthcare facilities is no doubt crucial for the better of the patients and for the good of those that own it.

If you own one such facility and have a hard time maintaining the HVAC system or the temperature and humidity, consult an HVAC professional today and fix the issues as early as you can. After all, your patients are at your facility to go back healed, and not to go back even sicker.

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High-Velocity Air Conditioning - How does it work and where does it best fit?

So all of you who have always known the bulky large ductwork of the forced air cooling system, do you also know about the high-velocity air conditioning system? If not, this blog today is about high-velocity air conditioning, how it works and where it best suits and best fits. So let's begin;

High-velocity Air Conditioning - What is it? 

Basically, the formula of high-velocity air conditioning is; smaller ducts - higher velocity. While in the conventional ductwork system, the ducts are so large; at least 2 feet wide in any case, this ductwork is 2 inch in width. And as we read in high school physics, ''small area - high velocity'', the air that comes from this 2 IN wide ductwork is much faster and higher in velocity and therefore cools the indoor in no time. A medium sized room, for instance, takes only 40-45 seconds to get evenly cooled via a high-velocity air conditioning system inlet. Amazing! Isn't it?
As said, this system uses small tubes that are very properly insulated and flexible, this takes energy loss (compared to conventional ducts), accommodation problems and complex installation out of the equation. The installation as well can be made with almost zero virtual ugliness.     


Is this system suitable for my home? 

This system is for you if you have a small area, don't have a ductwork installed already and can't take the worries of maintaining a conventional ductwork. As due to flexibility, the dust and pollen etc can't make homes in the duct corners like they do in the conventional ductwork, no complex cleaning is required. So if you run from cleaning, this is for you. Also, if you have a home that is old and too congested to be overloaded with a large duct system or you hate even the presence of the split ac systems, high-velocity air conditioning could be just right for you.

The drawback of this system 

Before we end, here's a drawback of high-velocity air conditioning system. Since the inlets of this air conditioning system are very small in size, they create noise as very high-velocity air passes through them. Although certain noise reduction accessories are often sold with the system, they don't make it entirely noiseless. Some people, especially those who have severe noise irritations may find this very disturbing.

One important suggestion 

Being people of the HVAC field, we help homeowners learn about different heating and cooling systems. But as we tell them about the systems, it is also upon us to make them aware of the pros and cons of the systems. Please note that not all systems are suitable for all homes. Although we do tell generally what is best for what, a perfect compatibility tick can only be given after properly inspecting the location and the needs of the people living in that area. Therefore, we highly recommend homeowners to consult professionals before purchasing costly appliances or before making serious renovations.
If you find high-velocity air conditioning a compatible choice for your home, don't rely solely on your assumption; consult a professional before you go serious about it.

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Ready your Furnace for hibernation

Finally, after a long and tireless operational season, it's the time for your Furnace to get some rest. Spring has already begun and Summer is just coming. While in many GTA areas, the weather is still cold enough requiring Furnace, many others have already turned their Furnace system off until the next season. But before you turn on your Air Conditioner by randomly turning the Furnace system off some day, this blog is a must read for you to learn how to properly set your home heating system for hibernation.


Follow these steps before turning your Furnace off until next season

- Cleaning around the unit 

As Furnace is an indoor unit and is usually installed in the basement, many people keep the surroundings of the unit piled with all the possible junk. Although this is usually not done when the system is operational, it is surely done by more than half of homeowners when the unit is not in use; in summers. Keeping the surrounding of the unit conjested creates a suitable space for insects and animals to hide. Also, placing any items on the top of the Furnace can damage its parts or the pipeline which could turn out to be of real danger. So before you shut it off, clean the surroundings and keep them clean whether or not the system is in use.

- Change filter before power off

Cleaning of the filters during the use is understandable but why clean them when the system is put to rest? Well, doing so helps protect the unit from the consequences of dust and debris. And as you turn the system on the next winter, it will be relatively cleaner making things easier for you.

- DIY or professional inspection 

Your unit could be facing a very serious problem and you, not knowing about it may turn it off without resolving it. This will for sure aggravate the problem when the system would remain off for a long period. Therefore, it is necessitated to perform a thorough inspection. If you think you are good enough at inspecting the Furnace yourself, do a DIY else better call a professional for a brief checkup to make sure the Furnace is not having any serious issues.

- Checking CO detector 

CO leak is not a winter only phenomenon. The gas can leak from the pipes even in summers as a result of a damage, corrosion or any other reason. If you don't have a CO detector installed, install one. While we are relatively careful about leaks in winters, this careful attitude is not followed in summers so there's more danger. If you have one such device already installed, check batteries to make sure the device is properly functional.

Why professional inspection could be safe and beneficial 

Calling a professional tech to ready your Furnace for hibernation mode could be beneficial in many regards. For example;
- A professional checks for leaks and damages both in Furnace, it's pipes and ductwork
- A professional makes sure all electrical connection are alright and also protects them from prospect summer damages
- A professional performs a thorough inspection reaching out to parts where you can't and also lubricates the parts which keep the unit super functional for next season

You might be too good at  HVAC things but an HVAC professional remains an HVAC professional doing something extra and better than you. So before saying goodbye to your Furnace until next winter, give it a gift; a professional maintenance.

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Inspect your HVAC system yourself!

You can save yourself from costly HVAC repairs and deadly HVAC dangers by performing DIY heating and cooling system inspection. Maintenance performed twice a year; one, when the winter is about to start and other when the spring begins, would take your HVAC appliance efficiency and the lifetime beyond expected. But before we begin, please note that not all maintenance to do's are safe and secure to be performed by individuals. There are some, like; checking flue pipes, inspecting leaks and electrical connections sort of maintenance tasks that should only be performed by a certified professional. For the rest, you can do it. Here's what you are required to do as part of DIY HVAC maintenance.

- Filter Inspection
Dirty filters not only block the airways and provide you with compromised quality of air, they also are one of the leading reasons for motor/compressor failure. As the system puts exceptional air to let the air pass through the dirty filters, it gets burdened. Therefore, the first thing to check is filters. A general time frame is 3-6 months but the duration may vary depending on the indoor activities performed and the kind of residential area. Inspect your filters and change/clean them.

- Ductwork Inspection
A leaking ductwork would ruin your system before you'd know it. In addition, the duct leaks significantly increase the energy bills. It is important that you look for any signs of duct leaks. For that, check;

- Dents in metal if it is a metal ductwork

- Streaks of dust. They indicate leaking air

- Torn pieces of duct (if it's a flex duct)

- Removing duct tape

Inspecting the flame
Your Furnace flame should be blue in colour. And it should be steady, not flickering. Yellowish, greenish flames indicate combustion problems.

Inspecting registers and grills
When checking the filters, don't forget to check the return duct, registers and grills for dust and debris. Often times, there are multiple casing & covers around the registers. Dust and debris on any layer would affect the flow of air.

Inspecting outdoors units
Outdoor Air Conditioner units or Heat Pump units should be checked for piles of leaves, animal faeces or any other stuff that has the potential to damage the unit in any way. Did you know that animal urine can corrode metal? Keep animals away from outdoor HVAC units.

Inspecting Thermostat and Detectors
Here's an important one that you should not miss when performing a DIY maintenance; Inspecting the Thermostat and Detectors. Clean the Thermostat by removing the outer lid. For the CO and alarm detectors, be sure to check the batteries. The batteries if they are expired, can put you in alarming situations.

Inspecting unusual signs and signals
HVAC system often shows some signs if there's something wrong going on. For example, smoke may emit from the vents, unusual sounds may come from the ductwork of heating/cooling units, Thermostat may off and on continuously etc. While you may usually ignore such signs on a daily basis, be vigilant enough to look for them when performing the maintenance.

Last note:
We have suggested what you can do as DIY maintenance being a common homeowner. But we also would like to remind you that for anything that you find beyond your capabilities to manage, call a professional. Also, do not try complex repairs yourself.
Have a great DIY maintenance!



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A brief history of different methods of Central Heating

Having an inquiring mind is a blessing from God. If you are a person who thinks of whys and hows and wheres and whens, congratulations! You are a good learner and a man of knowledge since those that inquire are those that explore. So, let’s come to the point. Have you ever wondered while looking at your Furnace or Fireplace how the people of olden times used to comfort themselves in cold weathers? If yes, it is the time to get your answer. Today, we shall explore the human history to figure out what were the ways that our forefather had used for heating their homes (or caves, yes).


Fire – The earliest ‘’home’’ heating tool


So our ancestors didn’t have the type of homes that we have today. They had caves and huts. Archeologists believe that the earliest form of home heating was the very fire which was created by rubbing stones and burning woods. This fire was set up in the inside of caves and huts with some kind of opening in the roof for the smoke to escape. Later on, this form improved a little and men of the time used stones and other types of dwellings to place that fire into and they were the fireplaces that heated their homes.

Fireplace, Hearths, Stoves and Underfloor systems – Who used them and how and when?


Humans throughout different cultures invented different schemes of central heating. Archeologists have excavated 2500 B.C. old fixed hearths in Greece. The Fireplace Heating (crude) is said to have been only 800 AD old. This type of crude fireplaces became the widely adopted home heating method in Europe in the 1400’s AD. The designs were improved and a circulating fireplace was first formed in 1600’s while a combustion air fireplace was introduced in 1700’s. Similarly, the history of stoves tells that first ever metal stove was made only after 1400’s. Germany and Holland became central manufacturers of these stoves.

Radiant Heating and how it evolved?


Radiant heating or underfloor heating is as old as 1300 BC. Later on, Romans improved this method in 80 B.C. and made systems that not only heated floors but also walls. The old radiant heating methods also called the hypocaust method used stone floor supported with pillars over a chamber that had fire at one end. The heat would radiate and made the floor and the indoor warm. This kind of hypocaust systems totally vanished after the fall of Roman Empire.

Steam Heating – How old is it?


So you know Boilers as the modern steam heaters. The history of Boilers isn’t much old. It is said that steam heating idea originated in 1745 in England. In 1790’s steam heating was already being used in residencies of its pioneers. Initially, it was used to warm factories and mills but later used to heat homes.

Forced air/fan system – When did it begin?


So we have come all the way long to forced air systems (one of which we use in our homes today; Furnace). The first ever fan/blower heating system was designed in 1735 for British parliament. Benjamin Franklin designed a heat exchanger and fan combination in order to suffice for cooling purpose in addition to sufficing for heating purpose.

Thermostats – Why were they invented?


By the 19th century, there were a number of central heating methods in use throughout different demographics but the matter of concern was controlling the warmth. So in the 1800’s several devices were introduced at the same time and can be considered the earlier forms of Thermostats. The latest form of Thermostats are the Smart Thermostats that use WiFi technology and make the heating system controllable from any location in the world while also offer a very precise temperature control and temperature scheduling.

Modern world and modern heating


After the 1920’s the world became more democratic than it was before and so did the heating. As a result, a mutual corporation of inventors, manufacturers, engineers made heating appliances cheaper, reliable and easily accessible. Forced Air Furnaces, advanced fixed Fireplaces, Baseboards, Boilers and other heating elements were introduced and are still being introduced.

This is how mankind has taken his long journey of central heating. And this journey continues as we look forward to even more advanced forms of heating. Bon Voyage fellow humans!



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Manual, Programmable & Smart Thermostats

A thermostat is basically a device which is used in different types of heating and cooling appliances, building architectures and other home/business appliances with the primary objective to sense the temperature of the system so as to keep it in the desired/preset limit. We are aware of one such type of Thermostat that is installed in our homes to control our HVAC system. While there has been a lot of advancements in the Thermostat technology, for instance, the latest Thermostats are capable of sensing the outdoor temperature and humidity as well, the homes in Canada still have all different categories of Thermostats ranging from the very old Mercury Thermostats to the very latest Smart Thermostats.
Today let us learn about these different types of Thermostat and what their pros and cons are. Let's begin:



Manual Thermostats - You control!

The Manual Thermostats are the oldest type of Thermostats that, as said above, as still in use in many Canadian homes. This type of Thermostats demand the homeowner to set the temperature manually by rotating the dial and only then they change the temperature. To keep it simple, no pre-set settings are available. There are some pros and cons of this type of Thermostats. The pros are that they are cheap and easy to use. People with little to no exposure to latest technologies can find ease with these Thermostats even now in the year 2017 and onwards. However, the cons of Manual Thermostats is that they are relatively imprecise and sometimes inconvenient too. Also, the disposal of the Manual Thermostats that are usually the mercury Thermostats is very difficult and it also poses threat to the environment.

Programmable Thermostats - Pre-set!

Programmable Thermostats were considered a big step up when they were initially introduced since they allow pre-setting of temperatures. You can simply set the temperatures on the unit and it automatically shifts to the set temperature at the set timings. There are many different types of Programmable Thermostats available today in the market that offer 4-7 days programming features. With easy to use interface, digital displays and reminder features, for many, this is the most suitable Thermostat type, however, some homeowners could still find it non-compatible due to limited features (compared with Smart Thermostats), high price (compared with manual thermostats) or some other reasons. So manufacturers didn't stop here at the Programmable Thermostats, they went a step ahead. 

Smart Thermostats, Disclaimer! Only for Smart Homeowners!

The Smart Thermostats is the latest thermostat technology available. Although the use of them hasn't become widespread as people are still continuing with their old thermostat technologies, the Smart Thermostats are likely to take the lead in the coming years owing to the benefits they offer. Let's first talk about the cons and then we shall move towards what do they offer.
The two major drawback of them is that;
  • They are very costly. (over $100 in any case. Some are even above $400)
  • Some people can find the use very difficult
  • They are not compatible with every type of HVAC system
Other than that, Smart Thermostats have everything smart to offer;
  • They offer up to 7-day programming 
  • They can be controlled from anywhere using wifi technology 
  • They notify regarding filter changing, maintenance etc 
  • They provide with energy usage data 
  • Many Thermostats come with a remote troubleshooting feature 
  • Some models offer voice recognition software using which you can make settings using voice command 
  • and much more.
If you are looking forward to purchasing a Thermostat but are wondering what would work best for your home, let us help you. Connect with us today for HVAC consultation, queries and quotes: 905-910-1488

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