Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

Natural gas furnaces need adequate space and airflow to heat right.

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

Annual furnace maintenance is essential to keep your unit operating well. A routinely serviced furnace may work more efficiently, which could lower your energy costs.

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

Maintenance often helps us spot troubles before they become expensive. This could help lessen future repair expenses and potentially prolong the life of your unit.

So how much room 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 take a look at manufacturer directions and Kearney ordinances for clearance guidelines.

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

You also need to make sure the space has ample 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 pulls combustion air from the adjacent space. If there’s inadequate air, unsafe gas fumes and poisonous carbon monoxide could back draft into your home.

If your furnace is placed in a tiny room with a gas water heater, you may need to put in extra openings. This could involve a fully louvered door or vents in the walls.

Uncertain if your furnace or water heater has proper ventilation? We can help!

Contact us

You don’t need to consider airflow and ventilation as much if you have a modern, 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 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, situate your litter box in another room. Cat urine contains ammonia, which could create wear on your furnace’s heat exchanger. Plus, the furnace could circulate the smelly odors all over your home.

You should also regularly sweep near 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 Kearney, Thurston Heating & Air Conditioning can expertly take care of your needs. Our highly trained technicians can fix any HVAC model or brand.

Call us at 308-624-3485 or use our online scheduler to request an appointment right away.

Back To Blog