Temporary Heating Equipment Safety Flashcards

What is the primary fire hazard associated with temporary propane heaters used on construction sites?

Answer: Release of combustible gas or vapor that can accumulate to explosive concentrations

Propane heaters pose the risk of gas leaks that create explosive vapor-air mixtures, particularly dangerous in enclosed construction spaces.

What health hazard does carbon monoxide (CO) from fuel-burning heaters present on construction sites?

Answer: Potentially fatal poisoning as CO displaces oxygen in the blood

Carbon monoxide binds to hemoglobin with 200 times greater affinity than oxygen, preventing blood from carrying oxygen and causing asphyxiation.

How far must temporary heating equipment be positioned from combustible materials?

Answer: 10 feet

Temporary heaters must be positioned at least 10 feet from combustible walls, floors, ceilings, and materials to prevent ignition from radiant heat.

What must be checked before operating a propane-fueled temporary heater indoors on a construction site?

Answer: Adequate ventilation to prevent CO accumulation and adequate clearance from combustibles

Before operating any fuel-burning heater indoors, adequate ventilation must be verified to prevent dangerous CO buildup, along with proper clearance from combustibles.

When is it appropriate to leave a temporary propane heater operating unattended on a construction site overnight?

Answer: Never — temporary propane heaters must not be left unattended

Temporary propane heaters must not be operated unattended — someone must be present to monitor for fire, gas leaks, and CO accumulation.

What action should an F-03 fire guard take upon detecting a smell of propane near heating equipment?

Answer: Turn off the equipment, evacuate the area, ventilate, and call the gas utility

Gas odor requires immediate shutdown, evacuation, and ventilation — never use any ignition source near a suspected gas leak.