Comfort Master Heating & Air Conditioning, Inc. Blog : Archive for the ‘Indoor Air Quality’ Category

Signs You Need Repairs for Your Ductwork

Monday, January 18th, 2021

interior-ac-ductsWhen people think of residential HVAC companies, they usually first think of fixing and installing air conditioning and heating systems. But that only covers the “H” and “AC” part of “HVAC.” One of the most critical parts of our job providing Apex, NC, HVAC services is work on the ventilation systems in homes. Poor ductwork is a source of tremendous issues that can wreck comfort and ruin energy efficiency in a house. A great AC and heater won’t be worth much if the ductwork they use to distribute conditioned air is leaking and broken.

Your home may need ductwork repairs, such as duct sealing. But how can you tell when you can’t see most of the ducts? There are several signs, which may often appear to be trouble with other parts of the HVAC system at first. No matter what you think is the source, call us for help when you notice these warning signs:

Surge in heating/cooling costs

Air leaks in ducts can suck away up to 30% of the heated or cooled air moving through them. The HVAC system must make up for that loss by running longer, and this will cause a steep increase in monthly utility bills. Any rise in the cost to run the HVAC system that you cannot account for through increased use or an energy cost increase is a reason to call professionals.

Rattling sounds from the vents

When the heater or AC first comes on, you might hear slight rattling from the ductwork. This is normal: it’s the metal in the ducts expanding or contracting from the temperature change. But if a rattling sound is constant and it keeps coming through the vents, it may mean parts of the ducts are damaged or have come loose. 

The HVAC system is running too long

Short-cycling is a common trouble with an HVAC system, where the AC or heater shuts off too early then starts up again. The opposite problem can happen, when the blower fan and heater/AC stay running for far too long, seeming to never shut off. This can indicate too much air lost to air leaks. (Yes, this is one of the sources for higher energy bills.) 

Musty and moldy odors from the vents

Because the ducts are contained in shut-off areas of the house (between walls, in the attic), the air they draw in through gaps and holes will be stuffy, stale, and sometimes even moldy. This will end up wafted out of the vents, giving you an alert that the ductwork has damage. 

Uneven heating and cooling

Leaking air ducts are a major cause of a house that’s suffering from hot and cold spots in the rooms. Damaged ducts will channel less conditioned air to their vents.

Drop in airflow from the vents

If you notice that the airflow coming from room vents is sluggish, this may mean that leaks have caused air pressure throughout the ventilation system to decline. This will eventually lead to a drop in comfort around the house. 

Schedule service in the Triangle Area of North Carolina with Comfort Master Heating & Air Conditioning, Inc. “Comfort From Our Family to Yours.”

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Ways to Tell You May Need an Air Purifier

Monday, October 12th, 2020

woman-with-sinus-troublesThe indoor air quality of your house may be poor. This is an educated guess, because numerous homes around the country suffer from poor indoor air quality because they have such poor outdoor ventilation. The troubles can intensify as the fall starts and cooler weather means more people inside and the house closed off to the outside air.

We have methods to help you enjoy better indoor air quality. One of these is the installation of air purifiers in Chapel Hill, NC. There are many different types of air purifiers available, and we can help find the right ones to help you—often paired with air filtration to catch larger particles.

However, this raises the question of how to know you need air purifiers in the first place. We have some answers below:

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The Strength of Air Filters Makes a HUGE Difference

Monday, August 3rd, 2020

man-with-air-filterYou’re looking into installing air filters in your home’s HVAC system, but you aren’t sure what type or strength of air filter is best the job. We’re glad you are considering this, since picking any air filter based on nothing more than guesswork or finding the strongest filter possible can lead to serious problems.

You want IAQ technicians who offer professional HVAC services in Wilson, NC to handle any air filtration system installation. They understand the details of air filter strength and will help you find the ideal filters to improve your indoor air quality.

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If I Have Air Filters, Do I Need an Air Purifier As Well?

Monday, July 6th, 2020

pleated-air-filterYou’re concerned about the indoor air quality of your home. Many people are right now, since we’re spending much more time indoors and the summer won’t change that. So along with a reliable air conditioning system (which we can help you with), you’ll also want to know you have clean and healthy air to breathe indoors.

But are the filters you have in place enough? And by this we mean special air filtration systems, not the basic filter on the HVAC cabinet, which isn’t designed to clean the air. The right filters can do a fantastic job removing major air pollutants from circulating in a house. But they sometimes need help from air purifiers. Let’s take a look at air purifiers in Cary, NC and when they’re useful.

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Can My AC Handle Summer Humidity?

Monday, May 11th, 2020

too-much-heatIf you’ve experienced at least one year living in the Triangle, you know that high humidity makes heat much harder to cope with. You can expect to run your home’s air conditioning system longer and harder to overcome the additional heat.

Well … the feeling of additional heat. High humidity doesn’t raise the temperature of the air: an 85°F day is still an 85°F day no matter if the relative humidity is 15% or 90%. What happens when humidity levels are too high (over 60%) is that more heat becomes trapped inside your body. The increased moisture in the air slows down your ability to release heat through perspiration, so you end up feeling hotter than if you were able to shed most of that internal heat.

Basic science lesson over. What does this have to do with your air conditioner? Plenty. If you feel your air conditioner isn’t doing much to combat the high humidity in your house each summer, that’s because it ­wasn’t designed to.

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Indoor Air Quality Often Gets Worse in Winter

Monday, November 11th, 2019

woman-with-allergiesThe outdoor temperature isn’t the only part of winter that becomes more difficult. Winter is also a season when indoor air quality for homes suffers steep drops. Poor IAQ can strike at any time of the year (spring brings serious allergy problems), but the issue is most consistent and predictable during the coldest months of the year.

Why Indoor Air Quality Drops in Winter

You probably think of winter as a time when colds and cases of flu are more common. This is true, and you would still have to face various illnesses during the season no matter the quality of your home’s air. But there are specific reasons for the negative impact on household air at this time—lack of fresh air circulation and unhealthy contaminants trapped indoors.

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Ventilate Your Home (And Save Money) With an ERV System

Monday, October 14th, 2019

airflow-diagramFall is an excellent time to have upgrades made to your home’s HVAC system. This can mean installing a new heater to get ready for the winter or putting in a new Wi-Fi thermostat system. One of the Cary, NC, HVAC services our professionals offer that can help a home tremendously during all seasons of the year is adding an ERV system. If you’re interested in enjoying better air quality in your house without wasting money on extra heating power, an ERV system is one of the finest options available.

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How a UV Air Purifier Can Help Your Home

Monday, July 8th, 2019

UV-lightIn terms of comfortable living, most homeowners are going to think first and foremost about temperature. This is totally understandable. Without an effective air conditioner in the summer and a reliable heater in our relatively mild winter season, it is very difficult to live in anything even remotely resembling “comfort”. If you think that temperature is the only factor to consider when it comes to your comfort or to your overall quality of life in your home, however, think again.

You should be equally concerned with the indoor air quality in your home, if not more so. Why? Because subpar indoor air quality can actually have pretty serious implications for your health. Your comfort is very important, of course, but your health needs to be protected at all costs. That is why you may need to use a UV air purifier in your home. If you are curious about UV air purifiers, this is the post for you, courtesy of your trusted HVAC company in Durham, NC.

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Why Humidity Can Make Summer Heat Much Worse

Monday, May 27th, 2019


What is it about humidity? We know—because we live in an area that often experiences high humidity during the middle of the year—that a hot day feels much hotter, and much less pleasant, when the humidity levels soar. A “dry heat” means “a tolerable heat.”

But what is it specifically about humidity that makes a hot summer day much harder to take? We have the answer to that question—and we also have a way to help you beat high humidity inside your home. (You’re on your own outside, however!)

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Dry Air Makes It Harder to Heat Your Home

Monday, January 21st, 2019

cold-man-with-thermostatWinter brings cold weather—we all expect that, and we have home heating systems to help keep our families warm. (If you don’t have a heating system or need a replacement, schedule service with our technicians.)

But winter brings more than cold with it. It also brings dry air. Moisture is drawn out of the air by freezing conditions, which gives the air that sharp crispness of the season. Homes can also experience dry air because of old atmosphere furnaces, which draw air from inside the home to work and then force the dry outside air to move in.

Dry conditions may make a hot summer day easier to take, but in winter it’s the opposite. When the air in your house is too dry (below 30% relative humidity), you’ll have a harder time keeping it warm.

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