Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

Natural gas furnaces need sufficient space and airflow to work right.

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

Regular furnace maintenance is important to keep your unit operating smoothly. A regularly serviced furnace may run more efficiently, which could decrease your utility bills.

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

Maintenance often helps us notice troubles before they become expensive. This could help lower future repair costs and possibly prolong the life of your unit.

So how much room should your system really have?

How Much Space Does My Furnace Need?

If you’re remodeling your basement or closing off your furnace room, you should consult manufacturer specifications and South Beloit and Belvidere statutes for clearance requirements.

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

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

Related: Furnace Service or Furnace Replacement: What to Consider

This model of furnace draws combustion air from the nearby 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 little 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.

Unsure if your furnace or water heater has enough ventilation? We can take a look!

Contact us

You don’t need to consider airflow and ventilation as much if you have a newer, 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 function 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 somewhere else. Cat urine contains ammonia, which could corrode your furnace’s heat exchanger. Plus, the furnace could spread the smelly odors around 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 need furnace replacement or routine maintenance in South Beloit and Belvidere, Fleming Heating & Air Conditioning Inc. can expertly handle your needs. Our highly trained technicians can fix any HVAC model or brand.

Call us at 877-389-2465 or use our online scheduler to get an appointment today.

Back To Blog