Construction Finish High temp paint - charcoal Door Fully removable - 4mm steel Door Glass 5 mm thick neo-ceramic Firebox Continuously welded 6mm cold rolled steel Baffle 5 x 25mm thick ceramic fire bricks Internal Liners 11 x 25mm thick ceramic fire bricks   Performance Heating Type Radiant Average efficiency 72% Emission level 3.3g/kg Peak Heat Output 15KW / 51,000BTU Max Rec Heating Capacity 17 squares/170 sqm Overnight burn time on low 10 hours   Dimensions Height x Width x Depth 662mm x 560mm x 567mm Minimum Hearth Size (Depth x Width) 1100mm x 960mm Minimum Hearth Thickness 7mm Non combustible material Weight   Flue Spigott Diameter     Clearances     Without flue shield With reflector shield With perforated flue shield and inner reflector shield A 450 mm 100 mm 200 mm B 700 mm 700 mm 700 mm C 450 mm 450 mm 450 mm door clearance front 400 mm 400 mm 400 mm door clearance side 200 mm 200 mm 200 mm