HVAC safety hazards often aren’t mentioned when it comes to possible dangers inside a house. That’s probably because residential heating and cooling components have been refined over the years to be safe under most common circumstances. Nevertheless, HVAC service professionals are careful to protect themselves from potential hazards that may be present in a HVAC system. Homeowners should also be aware of certain dangers.
- Electricity. Electrical power is present in all HVAC components, including a gas-fired furnace. The system blower fan located in the indoor air handler uses standard electrical power, while the outdoor central AC component utilizes a high-voltage, 220-volt circuit. Repair or diagnostic inspection of HVAC components should be left to qualified service technicians only.
- Natural gas. Leaking natural gas from a furnace (or appliance) can be explosive. It’s also hazardous to inhale. The pungent odor added to natural gas alerts you to a leak or other malfunction. If you notice this odor, get all occupants out of the house and call the fire department or your local gas company immediately.
- Carbon monoxide. A byproduct of natural gas combustion in a gas-fired furnace, carbon monoxide (CO) is a colorless, odorless gas that can be fatal if it accumulates inside a structure. Under certain circumstances, CO gas can enter the HVAC airflow through a cracked furnace heat exchanger, posing a hazard to residents. Annual furnace preventive maintenance by your HVAC contractor includes inspection of the heat exchanger, as well as testing for CO gas in the airflow. Another critical safety measure: Install carbon monoxide detectors in the house per the manufacturer’s recommendations and test monthly.
- Hazardous areas. Certain HVAC safety hazards are present in specific zones of the house. For example, inspecting ductwork or insulation in the attic could expose you to extreme heat in summer and inhalation of insulation fibers or dust at any time. The crawl space — another frequent location for HVAC ducts — may harbor toxic mold, vermin (including poisonous snakes), stagnant water, and electrical wiring.
For more about potential HVAC safety hazards, ask the pros at Paitson Bros. We’ve been your source for safe heating and cooling since 1922.
Paitson Bros
1 (812) 232-2347
Serving the Wabash Valley, IN Area Since 1922