Hargrove 30" Pinnacle Vented Natural Gas Burner With Electronic Ignition h14.12 while we are a little This fireplace toolset with while we are a little biased toward Solo Stove Sticks 375" Door opening – dimension (Height) 9" Door opening dimension (Width) 17 1 2" Firebox – dimension (Height) 11 7 8" Firebox – dimension (Width) 21" Firebox – dimension (Depth) 16 3 4" Firebox lined with refractory bricks for better heat distribution Yes Stainless steel secondary air system improving gas combustion Yes Adjustable threaded legs Yes Steel thickness – body 3 16" Steel thickness – top 5 16" Fireplace opening – minimum (Height) 23 3 8" Fireplace opening – minimum (Width) 28 7 8" Fireplace opening – minimum (Depth) 15 3 4" USA standard (emissions) Comply with EPA 2020 Canadian Standard (emissions) CSA B415 Fuel Type Natural Gas Vent Type Vented Certification ANsI Weight 35 lbs BTU 50 a replacement will be available from the dealer at which the appliance was purchased