Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

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

Your furnace can shut down if it doesn’t have enough clearance. It also makes it hard for our professionals to accomplish furnace repair.

Annual furnace maintenance is important to keep your equipment working well. An annually serviced furnace may heat more efficiently, which could reduce your energy expenses.

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

Maintenance often helps us spot issues before they begin. This could help lessen future repair expenses and likely lengthen the life of your unit.

So how much area should your furnace really have?

How Much Space Does My Furnace Need?

If you’re updating your basement or closing off your furnace room, you should research manufacturer directions and Robstown laws for clearance rules.

As a general suggestion, your furnace should be 30 inches away from furnace room walls on all sides. This allows our service experts to easily repair 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 type of furnace pulls combustion air from the nearby area. If there’s insufficient air, dangerous gas fumes and toxic carbon monoxide could flow back into your home.

If your furnace is located in a small room with a gas water heater, you may need to install more openings. This could involve a fully louvered door or vents in the walls.

Not sure if your furnace or water heater has proper ventilation? We can help!

Contact us

You don’t need to assess 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 draw in 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 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, put your litter box elsewhere. Cat urine contains ammonia, which could corrode your furnace’s heat exchanger. Plus, the furnace could circulate the smelly odors throughout your home.

You should also routinely clean near your furnace to prevent dust from developing.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you have to have furnace replacement or routine maintenance in Robstown, McNatt Inc can expertly meet your needs. Our highly trained technicians can fix any furnace model or brand.

Call us at 361-247-0605 or use our online scheduler to set up an appointment today.

Back To Blog