How Much Space Should I Leave Open Around My Furnace?

November 05, 2019

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

Your furnace can overheat if it doesn’t have enough room. It also makes it challenging for our professionals to accomplish furnace repair.

Annual furnace maintenance is crucial to keep your unit operating trouble-free. A regularly serviced furnace may heat more efficiently, which could lower your heating bills.

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

Maintenance often helps us discover problems before they become expensive. This could help lessen future repair costs and likely lengthen the life of your system.

So how much area should your furnace really have?

How Much Space Does My Furnace Need?

If you’re finishing your basement or enclosing your furnace room, you should research manufacturer directions and Holdrege ordinances for clearance rules.

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

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

Related: Furnace Service or Furnace Replacement: What to Consider

This model of furnace pulls combustion air from the surrounding area. If there’s inadequate air, unsafe gas fumes and toxic carbon monoxide could back draft into your home.

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

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

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You don’t need to think about airflow and ventilation as much if you have a newer, high-efficiency furnace with PVC piping. Your furnace 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, place your litter box somewhere else. Cat urine contains ammonia, which could deteriorate your furnace’s heat exchanger. Plus, the furnace could move the unpleasant odors around your home.

You should also regularly vacuum near your furnace to prevent dust from developing.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you want furnace replacement or annual maintenance in Holdrege, Durable Service can expertly take care of your needs. Our highly trained technicians can repair any furnace model or brand.

Call us at 308-995-8177 or use our online scheduler to request an appointment today.