Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

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

Your furnace can shut down if it doesn’t have enough room. It also makes it hard for our technicians to complete furnace repair.

Regular furnace maintenance is crucial to keep your unit operating trouble-free. An annually serviced furnace may run more efficiently, which could lower your utility expenses.

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

Maintenance often helps us notice issues before they begin. This could help lower future repair costs and likely 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 research manufacturer specifications and Lake Forest statutes for clearance guidelines.

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

You also need to ensure the room has enough airflow and ventilation, especially if you have an outdated furnace with a metal flue.

Related: Furnace Service or Furnace Replacement: What to Consider

This type of furnace needs combustion air from the surrounding space. If there’s not enough air, hazardous gas fumes and deadly carbon monoxide could flow back into your home.

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

Not sure if your furnace or water heater has enough ventilation? We can take a look!

Contact us

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 unit uses one pipe as an exhaust vent and the other to pull in air.

Keep Combustible Materials Away from Your Furnace

Although furnace rooms double as 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, put your litter box in another room. Cat urine contains ammonia, which could create wear on your furnace’s heat exchanger. Plus, the furnace could spread the smelly odors throughout your home.

You should also regularly vacuum by 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 annual maintenance in Lake Forest, 1st Choice Heating & Air Conditioning, Inc. can expertly meet your needs. Our highly trained technicians can work on any HVAC model or brand.

Call us at 949-204-0859 or use our online scheduler to get an appointment now.

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