Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

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

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

Routine furnace maintenance is important to keep your unit running well. An annually serviced furnace may run 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 start. This could help lower future repair costs and potentially lengthen the life of your furnace.

So how much room should your equipment 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 Oxford statutes for clearance guidelines.

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

You also need to check the area has ample airflow and ventilation, especially if you have an outdated furnace with a metal flue.

Related: Furnace Service or Furnace Replacement: What to Consider

This model of furnace pulls combustion air from the adjacent area. If there’s not enough air, hazardous gas fumes and toxic carbon monoxide could leak into your home.

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

Not sure if your furnace or water heater has proper ventilation? We can assist you!

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

Keep Combustible Materials Away from Your Furnace

Although furnace rooms function as 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 spread the stinky odors all over your home.

You should also routinely clean around your furnace to stop dust from developing.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you need furnace replacement or annual maintenance in Oxford, Franklin's Heating & Air Conditioning, Inc. can expertly handle your needs. Our highly trained technicians can work on any HVAC model or brand.

Call us at 662-350-0343 or use our online scheduler to set up an appointment right away.

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