How Much Space Should I Leave Open Around My Furnace?

November 05, 2019

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

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

Routine furnace maintenance is essential to keep your equipment running trouble-free. A regularly serviced furnace may heat more efficiently, which could reduce your heating bills.

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

Maintenance often helps us spot issues before they become expensive. This could help lower future repair costs and potentially extend the life of your furnace.

So how much room should your equipment really have?

How Much Space Does My Furnace Need?

If you’re remodeling your basement or enclosing your furnace room, you should take a look at manufacturer specifications and Hattiesburg ordinances for clearance guidelines.

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

You also need to make sure the area 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 pulls combustion air from the adjacent area. If there’s insufficient air, dangerous gas fumes and deadly carbon monoxide could back draft into your home.

If your furnace is placed in a small room with a gas water heater, you may need to add more 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 assess 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 double as 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 in another room. Cat urine contains ammonia, which could create wear on your furnace’s heat exchanger. Plus, the furnace could circulate the smelly odors throughout your home.

You should also routinely sweep near your furnace to stop dust from developing.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you have to have furnace replacement or regular maintenance in Hattiesburg, Oak Grove Heating & Air Conditioning can expertly take care of your needs. Our highly trained technicians can repair any heating equipment model or brand.

Call us at 601-292-9763 or use our online scheduler to get an appointment today.