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

Annual furnace maintenance is crucial to keep your equipment working smoothly. A routinely serviced furnace may work more efficiently, which could decrease your utility costs.

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 bills and possibly extend the life of your furnace.

So how much room should your furnace really have?

How Much Space Does My Furnace Need?

If you’re finishing your basement or sealing off your furnace room, you should take a look at manufacturer instructions and Rock Hill laws for clearance requirements.

As a general suggestion, your heater should be 30 inches away from furnace room walls on all sides. This permits our service technicians to comfortably work on it.

You also need to make sure the area 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 draws combustion air from the surrounding location. If there’s not enough air, hazardous gas fumes and poisonous carbon monoxide could back draft into your home.

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

Unsure if your furnace or water heater has enough ventilation? We can help!

Contact us

You don’t need to think about 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 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, place 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 unpleasant odors all over your home.

You should also regularly sweep around your furnace to stop dust from building up.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you want furnace replacement or annual maintenance in Rock Hill, US Air Heating and Cooling can expertly take care of your needs. Our highly trained technicians can fix any heating equipment model or brand.

Call us at 803-220-0761 or use our online scheduler to get an appointment today.

Back To Blog