Does Rasmussen offer either FireBalls, FireShapes or FireStones as a vent-free set?
Not at this time. FireBalls, FireShapes and FireStones are only for use in fully vented wood-burning fireplaces. All vent-free gas log sets must be certified to the national unvented heater standard, ANSI Z21.11.2. The most restrictive of all gas appliance standards, it allows the least amount of Carbon Monoxide (CO) (200 ppm air free) of any gas burning appliance. By contrast, the standard for a kitchen range, which is also an unvented appliance, allows up to 800 ppm air free. The ANSI Z21.11.2 standard also requires that all vent-free heaters be equipped with an Oxygen Depletion Sensor (ODS). By the ANSI standard, vent-free gas log sets must be designed so that they do not produce soot. . Initial certification testing is extremely rigorous and very costly. We are also subject to unannounced inspections by our certification agency for all certified product. It costs approximately $25,000 to $35,000 to develop and initially certify a new vent-free set. Before we certify a set, we must
