Find answers to Frequently Asked Questions about HVAC here.



  1. Why is maintenance necessary?

    We recommend having annual or biannual maintenance performed on your system to keep it operating efficiently. It includes regular cleanings, allows technicians to catch small issues before they turn into large problems, and is required by heating and cooling manufacturers to uphold a valid system warranty.

  2. Why does my furnace keep turning on and off?

    If your furnace seems to be turning on and off or running inconsistently, this is a sign that professional attention is needed. It could mean anything from a clogged system to a faulty piece of equipment. We will perform a thorough inspection to find out.

  3. When should I change my furnace filter?

    How often you change your furnace filter depends on your home and your indoor air quality. However, changing your filter biannually is a good rule of thumb. If you have questions about which filter you should be using with your system, give us a call.

  4. Is a bigger furnace the best option to improve my home heating?

    Bigger is not always better, especially in the case of furnaces. Using an oversized system in your home can actually be extremely inefficient and cost you more on energy bills. Your system needs to be appropriately fit to your home and cannot be chosen just by looking at ratings or efficiency.

  5. How can I tell if my system is malfunctioning?

    Typical signs that your system needs professional attention includes too frequent cycling, inefficient heating, odd smells, and strange noises. Trust your instincts and call New Berlin Heating when you suspect your system is malfunctioning.


  1. Why is my air conditioner so noisy when it starts up?

    Air conditioners are typically noisier when the condenser unit first starts. This happens because it needs to build up pressure to operate. If you notice the noise lasts for more than 10 seconds, give us a call. We will come out to inspect your system.

  2. How do I know what size air conditioner I need?

    Knowing what size air conditioner you need is not as easy as buying a T-shirt. It takes an HVAC professional to size the A/C unit appropriately for your home before recommending units to make sure an efficient, cost-effective system is being installed. Improper sizing can cost you money on energy bills and shorten the system’s life cycle because it won’t cycle properly.

  3. When should I have air conditioner maintenance performed?

    We recommend that you have annual maintenance performed on your A/C system. Spring to early summer is the ideal time to get your system cleaned and tuned up before you need to use it during the cooling season. It ensures maximum efficiency and allows us to catch any issues before they cause breakdowns.

  4. How efficient is my air conditioner?

    Air conditioners are given SEER ratings based on their efficiency. Seasonal Energy Efficiency Ratio (SEER) measures how much cooling a system puts out for each unit of energy it consumes. The higher the rating, the more efficiently your air conditioner is operating.

  5. How can I increase the efficiency of my home cooling?

    Having annual maintenance performed, changing your filters regularly, and adding a ductless split system to your “problem room” are all ways to improve your cooling efficiency. Ductless split systems offer added cooling comfort with the energy efficiency you are looking for.


  1. What exactly is indoor air quality?

    Indoor air quality refers to the quality of air inside your home including factors like temperature, humidity, airflow, and pollution. We can measure your indoor air for pollutants and volatile organic compounds (VOCs) and then recommend products to relieve issues like static electricity, dry skin, allergy symptoms, and more.

  2. Are indoor air quality problems common?

    Yes, indoor air is now considered to be more polluted than outdoor air. One in four homes has at least one indoor air quality problem, if not more. Ask the experts at New Berlin Heating to assess your home’s indoor air today.

  3. What are the most common indoor air quality problems?

    Top indoor air quality issues include:

    • lack of ventilation
    • poor upkeep of heating and cooling systems
    • dampness or an overly moist home
    • dust, biological materials, and chemicals caused by construction and remodeling
    • air contaminated with VOCs and pollutants
  4. What exactly does an air ventilator do?

    Air ventilators work to remove stale air from your home by replacing stagnant indoor air with fresh outdoor air. They even precondition incoming air to maintain your home comfort and efficiency.

  5. How do I know if I need a humidifier or dehumidifier?

    The best way to find out if you need a humidification product is to have one of our technicians measure your air. However, if your home has issues with static electricity or condensation on inside windows, these are signs you may need a humidifier or dehumidifier. Let us help you find out for sure.