Guys, you are just trying to volatilize the offensive odor molecules, and have them get stuck to the surface of the carbon crystals.
Fresh charcoal will adsorb more odor molecules, more quickly. Warmth just gets them into the air in higher concentrations for faster removal from their source.

And it's essentially harmless.

Newsprint works wonders on musty refrigerator cabinets.

Out there doing it best I can.