FAQs | DuctWorks Heating & Air Conditioning

DuctWorks Answers Our Customers’ Frequently Asked Questions

Ductworks Heating & Air Conditioning receives many questions from customers. This page is intended to provide advice and guidance regarding your heating, cooling, and/or indoor air quality equipment.
At the same time, please be advised that if you have a gas furnace or appliance and smell a “rotten eggs” odor, leave the property immediately. When you are in a safe place, call 911 and your local gas utility, so they can address this dangerous issue as it may be a gas leak which could lead to an explosion or fire.

Furnace Questions

It depends on the type of filter you’re using. High-efficiency filters may need changing annually, while others may need be changing monthly or every few months. Also, if someone in the home suffers from allergies and asthma, more frequent filter replace is recommended. At DuctWorks, we provide high-quality furnace filters. If your supply is running low, click here.
Most gas furnaces have a life span between 15 to 18 years in our brutal Minnesota climate. At the same time, having annual maintenance performed on your furnace could help extend its life. Annual maintenance will certainly make it run more efficiently. If your unit doesn’t seem to be working as efficiently as it used to, let our NATE-certified technicians check it out. We will honestly tell you whether the furnace can be repaired or whether a new installation is recommended.
If the furnace is blowing cold air after you have started the unit and let it run for several minutes, there is likely a problem with the unit, so it may need repair or service. Once the burners have shut off and the unit is in cool-down mode, there may be some cold air that is generated. This is not normally a problem.
A furnace has both normal smells and bad smells. For example, in the fall when you first start up your furnace you may smell an unpleasant odor from dust that has collected over the summer months. This is common and should only last a short while.
A metallic or “burning” odor could mean parts are rubbing inside your unit so it is best to turn off the unit and call DuctWorks to come and check out what is happening.
Some furnaces also have connected central air conditioning systems that produce “off” odors. This is a sign the unit may need service.
IMPORTANT: If you have a gas furnace and smell “rotten eggs” or sulfur, leave the house immediately! When you are in a safe place, call the utility company and 911 as there could be a gas leak which may lead to a fire or an explosion if not fixed promptly.

Indoor Air Quality Questions

Shutting registers often provides little temperature relief and may reduce airflow which could compromise some heating systems. A better solution might be to look at zoning your current system with a ductless split system.
Indoor air quality describes how inside air may potentially impact a person’s health, comfort, and ability to work. It can include temperature, humidity, lack of ventilation, mold, or exposure to chemicals. The Environmental Protection Agency (EPA) ranks poor indoor air quality as one of the top five current public health risks in America.

In older homes, ducts may start leaking. In some cases, you can actually see visual gaps in your ducting. In other cases, you just feel air streaming where it shouldn’t be. There may also be an issue if some rooms don’t heat or cool properly.

Rely on the NATE-certified technicians from DuctWorks to come to your home, evaluate your systems and let you know whether a revolutionary technology called Aeroseal®, can work for you. This environmentally friendly process is clean, safe, and guaranteed for 10 years.

Both contaminants can be highly dangerous. Most smoke detectors now come with carbon monoxide detectors to protect your family from injury. In addition, some electronic units will monitor for both carbon monoxide and radon.

Radon is an odorless and colorless gas that may cause diseases including lung cancer. Many counties in Minnesota have the potential for high levels of radon.

If you have concerns, the professionals at Ductworks can perform testing. Should high levels be detected, DuctWorks can install mitigation systems that vent this dangerous air outside your home or business.

One of the easiest things to do is to regularly change the filters in your heating/cooling systems. You may also want to consider humidifiers/dehumidifiers as they can maintain humidity at a very even level which greatly impacts comfort. A second step would be to have our NATE-certified professionals come to your home to perform an air quality check. We offer a variety of Daikin products including whole-home air purifiers, ventilators and ultraviolet lights that can help your family breathe easier.

The most common causes of IAQ problems are:

  • Inadequate ventilation
  • Contaminated air that is constantly being re-circulated
  • Improper upkeep of ventilation, heating, and air conditioning systems
  • Dampness due to leaks or high humidity

Boiler Questions

It could be that you simply added too much water to the system. However, if the problem continues, there may be a service issue or a piping leak. This will require attention, so please feel free to contact Ductworks should you have any concerns.
Yes, any boiler heating system requires annual maintenance.
A boiler works in combination with a floor radiant heat system and it is typically more quiet than a furnace or other forced air system. These units also tend to heat rooms more evenly as the heat radiates from the floor. In addition, since air is not moving, there may also be less dust in the home.

Air Conditioner Questions

It depends on the type of filter you’re using. High-efficiency filters may need changing annually, while others may need be changing monthly or every few months. Also, if someone in the home suffers from allergies and asthma, more frequent filter replace is recommended. At DuctWorks, we provide high-quality furnace filters. If your supply is running low, click here.
Theses units are designed to sit outside and handle the elements. While covering your air conditioner may keep it looking a little better over time, an A/C cover can create a perfect habitat for critters, such as mice. This could cause many issues for your unit and potentially your home. If you insist on covering the unit, we can only recommend covering the fan area.

Heat Pump Questions

Air conditioning units have a sole function which is to cool the air. They must be used in combination with a furnace or other heating solution.
A heat pump is a different type of equipment that acts as both an air conditioner and heat source. When a heat pump is run in reverse, it can provide you with a second heating option other than conventional gas systems. Most modern heat pumps can provide heat all winter long, even during our tough Minnesota weather.

Ductless Split System Questions

Ductless split or mini split systems allow spot cooling and heating by creating “zones” in your home or office, so you only cool or heat the room or group of rooms you’re using. Your family will spend significantly less on energy bills. One outdoor condenser unit can power a single or multiple indoor units for zoned comfort throughout your entire home. We have installed, maintained, and repaired these systems for many years, so contact us today if you have questions.
Ductless units can be used almost anywhere! Our experienced staff has installed them in attics, garages, basements, sunrooms, finished porches, pool houses, and more. We have also completed second floor and main floor installations when a heating/cooling unit is just not running efficiently, for older homes with boilers that lack air conditioning, or when a family member has allergies or ailments that require a consistent temperature.
can provide the perfect temperature to rooms that just don’t perform well, for example, being “too hot” or “too cold.” The system also works for rooms or areas that can’t be reached with conventional ducting or radiant heat. They are also energy-efficient and operate quietly.

Now Hiring New HVAC Installers and Service Technicians!

Join the Ductworks team and jumpstart your career today.