Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

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

Your furnace can get too hot if it doesn’t have enough space. It also makes it hard for our specialists to accomplish furnace repair.

Routine furnace maintenance is crucial to keep your equipment operating well. A routinely serviced furnace may run more efficiently, which could lower your energy expenses.

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

Maintenance often helps us discover issues before they become expensive. This could help lower future repair expenses and potentially extend the life of your unit.

So how much clearance 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 take a look at manufacturer specifications and Keokuk ordinances for clearance guidelines.

As a general suggestion, your system should be 30 inches away from furnace room walls on all sides. This allows our service technicians to conveniently replace it.

You also need to make sure the space 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 kind of furnace pulls combustion air from the adjacent location. If there’s inadequate air, unsafe gas fumes and toxic carbon monoxide could flow back into your home.

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

Uncertain if your furnace or water heater has enough ventilation? We can assist you!

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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 are often also used for laundry and storage space, you should keep yours free of clutter 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 elsewhere. Cat urine contains ammonia, which could corrode your furnace’s heat exchanger. Plus, the furnace could move the smelly odors around your home.

You should also routinely clean by 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 Keokuk, WM J Kraus & Son can expertly meet your needs. Our highly trained technicians can work on any heating equipment model or brand.

Call us at 319-229-2318 or use our online scheduler to get an appointment now.

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