Furnace Installation

How Much Space Should I Leave Open Around My Furnace?

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

Your furnace can shut down if it doesn’t have enough space. It also makes it hard for our specialists to perform furnace repair.

Routine furnace maintenance is important to keep your equipment operating well. A routinely serviced furnace may work more efficiently, which could reduce your energy bills.

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

Maintenance often helps us spot problems before they become expensive. This could help lessen future repair costs and possibly lengthen 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 enclosing your furnace room, you should take a look at manufacturer specifications and Marshalltown laws for clearance rules.

As a general recommendation, your heater should be 30 inches away from furnace room walls on all sides. This permits our service experts to easily repair it.

You also need to ensure the area has plentiful 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 surrounding area. If there’s insufficient air, hazardous 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 put in more openings. This could include a fully louvered door or vents in the walls.

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

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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, place your litter box elsewhere. Cat urine contains ammonia, which could deteriorate your furnace’s heat exchanger. Plus, the furnace could spread the stinky odors throughout your home.

You should also regularly vacuum 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 routine maintenance in Marshalltown, B & G HVAC can expertly meet your needs. Our highly trained technicians can fix any HVAC model or brand.

Call us at 641-812-2044 or use our online scheduler to request an appointment right away.

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