HY-C Company UL-Listed Stove Boards and Hearth Extenders protect your customer's floors from the intense heat, hot coals, ashes, and soot that wood stoves and fireplaces produce. They can also be used under other heating appliances such as kerosene, gas, and electric heaters. UL-Listed stove boards may be used as a wall shield to reduce a wood stove's clearance necessary to combustibles while protecting the walls from heat. Items and prices shown here are for black. Slate, sandstone tile, woodgrain patterns, and additional sizes are non-stock, but available upon request.