Intertek's Warnock Hersey Mark is a mark certifying product safety and performance used in North America, including on wood fire-rated doors. Intertek is a company that ensures products meet safety, health, environmental... More »

To qualify for a Warnock Hersey mark, a fire door must comply with local and national codes, requirements and standards as determined by an Intertek inspection or previous certification. The Warnock Hersey mark demonstra... More »

www.reference.com Home & Garden Doors, Windows, & Locks

Warnock Hersey is not the brand name of a wood stove manufacturer, but rather a product safety and performance verification mark which appears on nearly 80% of all wood stove doors in North America. The WH Mark is issued... More »

Warnock Hersey is a mark used in North America to indicate compliance with building codes and safety standards on construction sites. The symbol is commonly found on wood fire-rated doors. More »

www.reference.com Government & Politics

To qualify for a Warnock Hersey mark, a fire door must comply with local and national codes, requirements and standards as determined by an Intertek inspection or previous certification. The Warnock Hersey mark demonstra... More »

www.reference.com Home & Garden Doors, Windows, & Locks

Fireplaces that include the Warnock Hersey mark are available at thousands of fireplace retailers throughout the United States, such as Fireplace Center in Hilo, Hawaii; California Stove & Supply in Concord, California; ... More »

www.reference.com Home & Garden Heating & Cooling

Steel doors are inexpensive and low maintenance, while fiberglass is lighter weight, durable and can mimic the look of real wood. On the downside, steel doors dent easily and may not stand up to the elements well, while ... More »