Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

Natural gas furnaces need enough space and airflow to run properly.

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

Routine furnace maintenance is essential to keep your unit working well. An annually serviced furnace may run more efficiently, which could lower your heating costs.

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

Maintenance often helps us spot issues before they start. This could help reduce future repair bills and potentially lengthen the life of your unit.

So how much clearance should your furnace really have?

How Much Space Does My Furnace Need?

If you’re updating your basement or enclosing your furnace room, you should consult manufacturer directions and Jefferson City ordinances for clearance guidelines.

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

You also need to ensure the space 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 type of furnace draws combustion air from the adjacent location. If there’s inadequate air, hazardous gas fumes and deadly carbon monoxide could back draft into your home.

If your furnace is positioned in a tiny room with a gas water heater, you may need to add more 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 think about airflow and ventilation as much if you have a up-to-date, high-efficiency furnace with PVC piping. Your unit 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 somewhere else. Cat urine contains ammonia, which could deteriorate your furnace’s heat exchanger. Plus, the furnace could circulate the stinky odors throughout your home.

You should also frequently sweep by your furnace to block 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 Jefferson City, Stieferman Heating Company Inc can expertly take care of your needs. Our highly trained technicians can repair any heating equipment model or brand.

Call us at 573-203-3908 or use our online scheduler to request an appointment today.

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