Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

Natural gas furnaces need sufficient space and airflow to run correctly.

Your furnace can get too hot if it doesn’t have enough clearance. It also makes it challenging for our professionals to perform furnace repair.

Regular furnace maintenance is crucial to keep your system operating well. A routinely serviced furnace may heat more efficiently, which could lower your energy expenses.

Related: How Does Furnace Maintenance Impact the Energy Efficiency of Your Home?

Maintenance often helps us notice issues before they start. This could help lessen future repair bills and potentially lengthen the life of your system.

So how much room should your system really have?

How Much Space Does My Furnace Need?

If you’re remodeling your basement or sealing off your furnace room, you should take a look at manufacturer specifications and Clackamas ordinances for clearance requirements.

As a general suggestion, your system should be 30 inches away from furnace room walls on all sides. This lets our service experts to comfortably repair it.

You also need to ensure the area has enough airflow and ventilation, especially if you have an older furnace with a metal flue.

Related: Furnace Service or Furnace Replacement: What to Consider

This type of furnace needs combustion air from the nearby space. If there’s inadequate air, hazardous gas fumes and deadly carbon monoxide could flow back into your home.

If your furnace is located in a little room with a gas water heater, you may need to add extra openings. This could consist of a fully louvered door or vents in the walls.

Unsure if your furnace or water heater has proper ventilation? We can take a look!

Contact us

You don’t need to consider airflow and ventilation as much if you have a modern, high-efficiency furnace with PVC piping. Your system uses one pipe as an exhaust vent and the other to draw in air.

Keep Combustible Materials Away from Your Furnace

Although furnace rooms are often also used for laundry and storage space, you should keep yours free of items that could be fire hazards.

This includes:

  • Clotheslines
  • Cleaning or laundry products
  • Gasoline, paint or paint thinner
  • Rags and papers
  • Wood scraps and sawdust
  • Used filters

If you have a cat, situate your litter box elsewhere. Cat urine contains ammonia, which could corrode your furnace’s heat exchanger. Plus, the furnace could move the smelly odors around your home.

You should also routinely vacuum by your furnace to stop dust from developing.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you have to have furnace replacement or annual maintenance in Clackamas, Central Air Inc can expertly take care of your needs. Our highly trained technicians can fix any HVAC model or brand.

Call us at 503-389-5307 or use our online scheduler to set up an appointment today.

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