Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

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

Your furnace can get too hot if it doesn’t have enough room. It also makes it challenging for our technicians to accomplish furnace repair.

Regular furnace maintenance is crucial to keep your unit operating smoothly. A regularly serviced furnace may work more efficiently, which could reduce your utility costs.

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

Maintenance often helps us discover troubles before they begin. This could help reduce future repair costs and likely extend the life of your furnace.

So how much room should your furnace really have?

How Much Space Does My Furnace Need?

If you’re remodeling your basement or sealing off your furnace room, you should research manufacturer instructions and Alliance laws for clearance requirements.

As a general suggestion, your heater should be 30 inches away from furnace room walls on all sides. This allows our service technicians to conveniently replace it.

You also need to check the room has ample airflow and ventilation, especially if you have an aging furnace with a metal flue.

Related: Furnace Service or Furnace Replacement: What to Consider

This kind of furnace draws combustion air from the surrounding space. If there’s not enough air, hazardous gas fumes and toxic carbon monoxide could leak into your home.

If your furnace is positioned in a tiny room with a gas water heater, you may need to put in supplemental openings. This could involve 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 assess airflow and ventilation as much if you have a newer, high-efficiency furnace with PVC piping. Your unit uses one pipe as an exhaust vent and the other to pull 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, put your litter box elsewhere. Cat urine contains ammonia, which could deteriorate your furnace’s heat exchanger. Plus, the furnace could spread the smelly odors throughout your home.

You should also routinely sweep around your furnace to stop dust from building up.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you want furnace replacement or regular maintenance in Alliance, Jack's Refrigeration Heating and Cooling can expertly take care of your needs. Our highly trained technicians can fix any furnace model or brand.

Call us at 308-646-3827 or use our online scheduler to set up an appointment right away.

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