Purchasing an energy-efficient gas fireplace and properly locating and installing it are critical first steps in controlling your fireplace's operating costs and helping the environment. However, it is also important to use the fireplace wisely once it is installed. Follow these basic guidelines to maximize your fireplace's performance and minimize its energy consumption.
Remember that a well-designed, energy-efficient gas fireplace, properly located and maintained, can give you hours of pleasure and comfort while reducing your overall heating bill.
Source: Natural Resources Canada (NRCan) - Office of Energy Efficiency