Flameproof vs. Explosion-Proof Heaters: Choosing the Right Safety Solution Ask three engineers to name a safe heater for a gas area. You may hear three different terms. "Flameproof" and "explosion-proof" are often used as if they mean the same thing. They overlap, but they are not identical. Getting the wording right matters when you specify flameproof heaters for a hazardous site. This blog explains the difference in plain English. It draws on the approach of Hazard Heating Services. https://blogmrworld.com/flameproof-vs-explosion-proof-heaters-choosing-the-right-safety-solution-6ae4947d9f1d2