How Much Space Should I Leave Open Around My Furnace?

November 05, 2019

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

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

Annual furnace maintenance is essential to keep your system operating smoothly. An annually 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 start. This could help reduce future repair expenses and potentially extend the life of your system.

So how much area should your equipment really have?

How Much Space Does My Furnace Need?

If you’re remodeling your basement or sealing off your furnace room, you should consult manufacturer specifications and Middletown statutes for clearance guidelines.

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

You also need to ensure the room has ample airflow and ventilation, especially if you have an outdated furnace with a metal flue.

Related: Furnace Service or Furnace Replacement: What to Consider

This model of furnace needs combustion air from the adjacent area. If there’s insufficient air, hazardous gas fumes and poisonous carbon monoxide could leak into your home.

If your furnace is located in a small 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 proper ventilation? We can assist you!

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You don’t need to assess airflow and ventilation as much if you have a modern, high-efficiency furnace with PVC piping. Your furnace 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, put your litter box elsewhere. Cat urine contains ammonia, which could create wear on your furnace’s heat exchanger. Plus, the furnace could circulate the stinky odors throughout your home.

You should also routinely vacuum by your furnace to stop dust from building up.

Related: Is it Time for Furnace Service or Replacement?

Request Expert Furnace Service 

Whether you have to have furnace replacement or regular maintenance in Middletown, SchagrinGAS Company can expertly handle your needs. Our highly trained technicians can fix any HVAC model or brand.

Call us at 302-231-1380 or use our online scheduler to get an appointment today.