Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

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

Your furnace can shut down if it doesn’t have enough space. It also makes it challenging for our specialists to complete furnace repair.

Regular furnace maintenance is essential to keep your system running smoothly. A routinely serviced furnace may work more efficiently, which could reduce your energy costs.

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

Maintenance often helps us spot problems before they become expensive. This could help lessen future repair costs and possibly extend the life of your unit.

So how much area should your furnace really have?

How Much Space Does My Furnace Need?

If you’re updating your basement or sealing off your furnace room, you should take a look at manufacturer directions and Ontario statutes for clearance rules.

As a general recommendation, your system should be 30 inches away from furnace room walls on all sides. This allows our service professionals to comfortably replace it.

You also need to make sure the space has ample airflow and ventilation, especially if you have an older furnace with a metal flue.

Related: Furnace Service or Furnace Replacement: What to Consider

This kind of furnace draws combustion air from the adjacent area. If there’s inadequate air, dangerous gas fumes and deadly carbon monoxide could leak into your home.

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

Not sure if your furnace or water heater has adequate ventilation? We can take a look!

Contact us

You don’t need to consider airflow and ventilation as much if you have a up-to-date, high-efficiency furnace with PVC piping. Your system uses one pipe as an exhaust vent and the other to add 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 clutter 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 somewhere else. Cat urine contains ammonia, which could deteriorate your furnace’s heat exchanger. Plus, the furnace could move the smelly odors throughout your home.

You should also routinely vacuum by your furnace to prevent dust from building up.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you need furnace replacement or annual maintenance in Ontario, Stan's Heating, Inc can expertly handle your needs. Our highly trained technicians can repair any HVAC model or brand.

Call us at 541-286-6602 or use our online scheduler to request an appointment today.

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