Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

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

Your furnace can get too hot if it doesn’t have enough clearance. It also makes it challenging for our professionals to complete furnace repair.

Routine furnace maintenance is important to keep your system working smoothly. A regularly serviced furnace may heat more efficiently, which could reduce your utility expenses.

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

Maintenance often helps us discover troubles before they start. This could help reduce future repair costs and likely extend the life of your unit.

So how much room should your furnace really have?

How Much Space Does My Furnace Need?

If you’re updating your basement or sealing off your furnace room, you should consult manufacturer directions and Florissant laws for clearance requirements.

As a general rule of thumb, your heater should be 30 inches away from furnace room walls on all sides. This allows our service technicians to conveniently replace it.

You also need to ensure the space has plentiful 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 nearby location. If there’s not enough air, unsafe gas fumes and toxic carbon monoxide could leak into your home.

If your furnace is located in a small room with a gas water heater, you may need to put in supplemental openings. This could consist of 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 assess airflow and ventilation as much if you have a up-to-date, 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 things 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 elsewhere. Cat urine contains ammonia, which could corrode your furnace’s heat exchanger. Plus, the furnace could move the stinky odors around your home.

You should also routinely sweep around your furnace to prevent dust from accumulating.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you need furnace replacement or routine maintenance in Florissant, B & B Heating & Cooling can expertly take care of your needs. Our highly trained technicians can repair any furnace model or brand.

Call us at 314-325-7552 or use our online scheduler to request an appointment right away.

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