Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

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

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

Routine furnace maintenance is crucial to keep your unit working smoothly. A regularly serviced furnace may heat more efficiently, which could decrease your heating costs.

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

Maintenance often helps us spot problems before they begin. This could help lower future repair expenses and likely prolong the life of your furnace.

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 consult manufacturer specifications and Lawrence laws 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 experts to easily work on it.

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

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

Uncertain if your furnace or water heater has enough ventilation? We can assist you!

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You don’t need to consider airflow and ventilation as much if you have a newer, 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, place your litter box in another room. 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 regularly vacuum near your furnace to prevent dust from building up.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you want furnace replacement or annual maintenance in Lawrence, Scott Temperature can expertly meet your needs. Our highly trained technicians can fix any furnace model or brand.

Call us at 785-269-0465 or use our online scheduler to get an appointment right away.

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