Heating, ventilation, and air conditioning (HVAC) systems are essential for maintaining comfort in our homes year-round. Despite their importance, many homeowners have questions about how these systems work, how to maintain them, and when to seek professional help. With our expertise, we’ll answer some of the most common questions our customers have about their HVAC systems, furnaces, and air conditioners.

HVAC Questions

What does HVAC stand for? 

HVAC stands for heating, ventilation, and air conditioning. Each component plays an important role in maintaining a comfortable temperature inside your home. 

  • Heating: Keeps your home warm during colder months.
  • Ventilation: Ensures the circulation of fresh air and the removal of stale air.
  • Air Conditioning: Cools your home during hot weather.

How often should I service my HVAC system?

It is recommended to service your HVAC system at least once a year. Ideally, it should be serviced twice a year: in the spring for your air conditioner and in the fall for your furnace. Regular maintenance can help with the items below. 

  • Improve efficiency
  • Extend the lifespan of your system
  • Save on energy costs
  • Prevent unexpected breakdowns

What are the signs that my HVAC system needs repair?

These are common signs that your HVAC system may need repair. If you notice any of these signs, it’s important to contact a professional to diagnose and fix the issue promptly.

  • Strange noises (e.g., banging, clanking)
  • Uneven heating or cooling
  • Increased energy bills
  • Frequent cycling on and off
  • Poor airflow
  • Unpleasant odors

Does closing vents in unused rooms save energy?

Closing vents in unused rooms can actually reduce the efficiency of your HVAC system. It can cause pressure imbalances and make the system work harder, leading to higher energy consumption and potential damage. Instead, consider using zoned heating and cooling systems.

Is it better to leave my HVAC system running all the time?

Leaving your HVAC system running continuously is not always efficient. Using programmable thermostats to adjust the temperature based on your schedule can save energy and maintain comfort. Set your thermostat to lower or higher temperatures (depending on the season) when you’re away from home.

Furnace Questions 

How does a furnace work?

A furnace heats your home by blowing heated air through ducts. The basic operation involves a few items. 

  • Ignition of fuel (gas, electricity, or oil)
  • Heating the air in a heat exchanger
  • Distribution of the heated air through a blower motor and duct system

What is the average lifespan of a furnace?

The average lifespan of a furnace varies by type and proper maintenance. 

  • Gas furnaces: 15-20 years
  • Electric furnaces: 20-30 years
  • Oil furnaces: 15-25 years

How can I improve the efficiency of my furnace?

Here are a few tips to improve your furnace efficiency. 

  • Set your thermostat to an optimal temperature
  • Regularly change or clean filters
  • Schedule professional tune-ups
  • Ensure your home is well-insulated and sealed to prevent heat loss

Air Conditioning Questions

How does an air conditioner work?

An air conditioner cools your home by removing heat from indoor air and pushing it outside. The process involves these few items. 

  • Refrigerant absorbing heat from indoor air
  • Compressor pumping the refrigerant through the system
  • Heat being released outdoors from the condenser coil
  • Cooled air being circulated back into your home

What size air conditioner do I need for my home?

Proper sizing of an air conditioner is crucial for efficiency and comfort. A professional can perform a cooling load calculation to determine the right size for your home. Consider these factors. 

  • Size and layout of your home
  • Insulation levels
  • Number of windows
  • Local climate

What can I do to maintain my air conditioner?

Proper maintenance ensures your air conditioner runs efficiently and extends its lifespan. Regular maintenance tasks can include the following. 

  • Cleaning or replacing filters monthly
  • Checking and cleaning coils
  • Clearing debris from the outdoor unit
  • Scheduling professional inspections

Do I need to cover my outdoor AC unit in the winter?

Covering your outdoor AC unit is generally not necessary and can trap moisture, leading to rust and damage. Instead, ensure it’s clean and free of debris. To properly maintain your AC in winter, follow these tips. 

  • Turn off the unit’s power supply
  • Clean the unit
  • Inspect for any damage

Contact the Des Moines Heating & Cooling Experts With Questions! 

By addressing these common questions, we hope we provided you with valuable insights into the care and operation of your HVAC, furnace, and air conditioning systems. For professional HVAC services and expert advice, contact us today. Let us help you relax in the comfort of your home with our trusted HVAC crew and services!