Chicago Wind Causing Heating Problems? Your Furnace or Boiler May Be Experiencing a Downdraft

Why Your Furnace or Boiler Stops Working on Windy Days

Have you ever noticed your furnace or boiler acting up during very windy weather? In some homes, strong winds can interfere with the way a heating system vents exhaust gases. This problem is often caused by something called a downdraft.

A downdraft happens when wind pushes air down the chimney or vent pipe instead of allowing combustion gases to rise and exit properly. When this occurs, it can disrupt normal furnace or boiler operation.

Common signs of a downdraft include:

• The pilot light going out

• The furnace or boiler shutting off unexpectedly

• Inconsistent heating

• System errors related to venting or pressure switches

In Chicago, high winds and older chimney systems can make downdrafts more common, especially with boiler systems or older furnaces that rely on natural draft venting.

Downdrafts should not be ignored. If a heating system cannot vent properly, it may not operate efficiently and could lead to larger problems with the system.

At Around the Town Heating & Cooling Inc., we diagnose furnace and boiler venting issues, including downdrafts, pilot outages, and chimney draft problems. If your heating system struggles during windy weather, it may be time for a professional inspection.

Call Around the Town Heating & Cooling Inc. at 312-243-9896 if your furnace or boiler is acting up on windy days or to schedule service.