Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

Natural gas furnaces need adequate space and airflow to work properly.

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

Regular furnace maintenance is important to keep your equipment running trouble-free. An annually serviced furnace may heat more efficiently, which could decrease your heating bills.

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

Maintenance often helps us notice troubles before they begin. This could help reduce future repair costs and possibly lengthen the life of your unit.

So how much room should your system really have?

How Much Space Does My Furnace Need?

If you’re finishing your basement or closing off your furnace room, you should consult manufacturer instructions and Redford ordinances for clearance guidelines.

As a general recommendation, your system should be 30 inches away from furnace room walls on all sides. This lets our service professionals to conveniently repair it.

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

Related: Furnace Service or Furnace Replacement: What to Consider

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

If your furnace is placed in a small 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.

Not sure 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 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, put your litter box in another room. Cat urine contains ammonia, which could deteriorate your furnace’s heat exchanger. Plus, the furnace could spread the unpleasant odors around your home.

You should also frequently vacuum near your furnace to prevent dust from developing.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you need furnace replacement or regular maintenance in Redford, Airtronic Heating & Cooling can expertly take care of your needs. Our highly trained technicians can work on any HVAC model or brand.

Call us at 313-230-4053 or use our online scheduler to set up an appointment now.

Back To Blog