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Frequently Asked HVAC and Plumbing Questions

Have a question? Get answers from the experts at Northern Comfort Systems! Check out our most frequently asked questions below. If you don’t find what you’re looking for, give us a call!


The general rule of thumb is that your HVAC systems should be serviced before the start of each heating or cooling season. That means you should schedule air conditioner maintenance in the spring and have your heat pump or furnace inspected in the fall.

Your air filters should be replaced every 30 to 90 days, depending on the type of filter, usage, allergies, and if you have pets in your home.

Yes, contaminants like allergens, dust, pollution, and mildew can circulate in your home, which affects your family’s health and the structural “health” of your home. We offer a variety of options to improve your indoor air quality.

A zoned HVAC system allows you to more precisely control the heating and cooling in your home, which results in increased comfort, decreased energy bills, and higher overall energy efficiency.

Much like zoning your system, a programmable thermostat allows you to fully customize your home’s heating and cooling and can also help improve energy efficiency and save money on utility bills.

Plumbing FAQs

It’s possible that you have a silent leak in your toilet. Here’s a pretty simple test to confirm: Add a few drops of food coloring to your toilet tank and wait half an hour (make sure no one uses it while you wait). After half an hour has passed, check to see if any of the food coloring is visible in the bowl. If you can see color, call a plumber to schedule service.

Tankless water heaters never run out of hot water because they don’t rely on a tank to store and heat a limited supply of water. Since there’s no stored water, there’s zero risk of a burst or leaky water heater. You’ll also see lower utility bills, because you’re only using energy to heat water when you need it.

Yes, many seemingly harmless food items can severely damage your disposal, including:

  • Potato skins
  • Fibrous foods, including celery, asparagus, and artichokes
  • Bone fragments and eggshells
  • Banana peels
  • Fats and grease
  • Unpopped popcorn kernels
  • Onion skins
  • Fruit pits and seeds

If you think you have a leak, go to your water meter and record the level. Ensure that no one uses any water for a few hours and return to the meter to check again. If the number has changed, you most likely have a leak.

Contact Northern Comfort Systems for All Your HVAC and Plumbing Needs

Our highly trained team of professionals will provide you with only the best-quality products and services. We back all of our products and workmanship with a one-year money-back guarantee.

If you have any questions about HVAC or plumbing that weren’t covered by our FAQs, or if you would like to make an appointment, or give us a call!

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