Frequently Asked Questions
Dugan Air has the answers to your most frequently asked HVAC questions. Contact our professionals today to learn more and to set up a service appointment with one of our professionals!
- Why Is the Temperature Uneven in My Home?
- Are Whole-House Humidifiers Worth It?
- What Size Air Conditioner Do I Need?
- How Can I Detect AC Refrigerant Leaks?
- Does a Gas Furnace Work Without Electricity?
- What Do I Do If My Furnace Won’t Ignite?
- Why Is My Furnace Leaking?
- How Often Should I Have My HVAC Unit Serviced?
- Why Are My Ducts Making a Popping Sound When the Furnace Starts or Stops?
- What Can I Do About Indoor Air Quality?
- What Causes AC Units to Freeze Up?
- Why Should I Replace My R-22 Outdoor Unit with an R410A?
Why Is the Temperature Uneven in My Home?
There are several reasons including poor insulation, ductwork that is leaking, or HVAC or ductwork that is improperly sized for your home. Poor insulation means your home can’t trap the heat or cold, causing your system to run more to keep your desired temperature. With leaky ductwork, you might not be able to have complete airflow to all your rooms. If you have improperly sized units, the improper airflow might damage the unit due to it overheating or icing up.
Are Whole-House Humidifiers Worth It?
If you want to control the humidity in your house while also reducing airborne irritants, a humidifier might be right for you. They are very low maintenance and will automatically control the humidity in your home, no matter what the air is outside. It has also been shown to reduce allergies while also making your home more comfortable.
What Size Air Conditioner Do I Need?
The size of the unit will depend on several factors, including your home’s square footage, the number of people living there, and your insulation. The easiest indicator is to use the square footage of your home to determine how many BTUs (British Thermal Units) you need for your home. For a more accurate estimate, you can have professionals do a manual j calculation on your home to determine what size air conditioner you need.
How Can I Detect AC Refrigerant Leaks?
The most important thing is to have AC professionals attempt this, as they have the experience to handle these situations. One method is dye detection, where fluorescent dye is put through the system to see where it leaks out. They then use a detection lamp to check where the leak came from. There are other options like electronic or nitrogen detection, as well, though it depends on the scale of your leak situation.
Does a Gas Furnace Work Without Electricity?
A gas furnace does not work without electricity as there are still electronic components that are used for it to run. With no electricity, It will not be able to ignite or use the blower fan to function properly. Due to its safety features, if it goes out during a power outage, it will not be able to come back on until power is restored.
What Do I Do If My Furnace Won’t Ignite?
There are several things you can do if your furnace is not igniting, like checking your thermostat settings or checking if your air filter needs to be replaced. It could be your pilot light is not starting or your gas line is not being turned on. If your problem is something else, or you don’t have the expertise to properly address some of these issues, it’s best to call a professional technician to handle the problem.
Why Is My Furnace Leaking?
The most common reason for a leak is from condensation due to gases cooling in the unit. This can lead to the condensation drain becoming clogged as well as a break in the line. It is important to call a professional to look deeper into the problem and handle it.
How Often Should I Have My HVAC Unit Serviced?
You should have it checked at least once a year, especially before the months you use it the most. This is important as keeping your unit properly maintained will help your unit operate at peak efficiency and reduce the chance of major issues popping up. If you don’t get it serviced, you might be risking the lifespan of your system and an increase in energy bills.
Why Are My Ducts Making a Popping Sound When the Furnace Starts or Stops?
It is most likely due to your metal ducts not being insulated or the metal being overly thin and improperly sized. When high temperatures hit the exterior of a cold duct and vice versa, the metal expands causing a popping sound. The best way to deal with it is to have your ducts air-sealed and insulated or to have them replaced altogether.
What Can I Do About Indoor Air Quality?
There are a few things you can do, like changing out the various air filters in your home, your AC unit, vents, and vacuum. You can also have your air ducts examined and/or cleaned to make certain that they are properly installed so contaminants aren’t leaking through. You can also get an air purifier to help clean the air and a humidifier to control your home’s humidity. Our team has plenty of services and products to help you keep the air in your home as clean and healthy as possible.
What Causes AC Units to Freeze Up?
Your AC unit freeze-up might be caused by a system malfunction leading to the evaporator coil to freeze. It could also be caused by your air filters being overly dirty or clogged leading to less airflow. There are also refrigerant leaks or mechanical problems that could be causing the problem, as well. It’s important to get a professional to routinely maintain and tune up your unit so you are less likely to develop these problems.
Why Should I Replace My R-22 Outdoor Unit with an R410A?
The major reason is that R-22 coolant has an effect on the ozone layer leading to it no longer being manufactured. It becomes harder to maintain due to its discontinuation, so having an R410A means your unit will be more efficient. There’s no real reason to keep an R-22 as it’ll only lead to increased costs and a negative impact on the environment.