Blaze King’s Princess insert is the most efficient wood insert on the market today. With a deep firebox, frequent emptying of ashes is a thing of the past. An installer-friendly design includes a 45–degree-angle draft hood, permitting easy liner connections. Blowers are standard, and two shroud sizes are available for different fireplace openings. With a 2.54–cubic-foot firebox, emissions of a mere 2 grams per hour, and proven catalytic-combustion design, the Princess insert has a 10-year 100% warranty on the combustor. Efficiency levels are 80% (higher heating value) and 86% (lower heating value).