Charlotte sits in a climate zone where furnaces cycle heavily from October through April, but humidity stays high during shoulder seasons. This combination accelerates heat exchanger corrosion. When condensation forms on cold metal surfaces during spring and fall temperature swings, rust develops inside the heat exchanger. Over time, thermal expansion cracks the rusted metal. Those cracks leak combustion gases into your air supply. Homes in older neighborhoods like Plaza Midwood, Dilworth, and Elizabeth often have original 1980s and 1990s furnaces reaching the end of their 20-year lifespan. Professional CO leak inspection catches these failures before symptoms appear.
Keystone HVAC Charlotte has worked with Mecklenburg County building inspectors and local fire departments on CO investigations for over two decades. We understand North Carolina mechanical code requirements and follow ANSI standards for combustion testing. When we document a carbon monoxide issue, insurance companies and home inspectors accept our findings without question. Our technicians hold NATE certification and complete annual training on gas appliance diagnostics. You get accurate testing performed by professionals who know Charlotte's housing stock, climate challenges, and code requirements.
