Superior DRT3535 35" Mid Size Traditional Top Rear Direct Vent Propane Gas Fireplace With Electronic Ignition w10.13 GCUF GRUF Series 32 GCUF36C R GRUF36C R GCUF36C F GRUF36C F OPT RGLPC48FSEN SLV LP GCUF GRUF Series 32 GCUF36C R GRUF36C R GCUF36C F GRUF36C F Size: 36 Appliance Width: 41" Appliance Height: 34 3 4" Appliance Depth1: 18" Hearth Front Width: 34" Hearth Front Height: 21 7 8" Hearth Depth: 15 3 4" Hearth Rear Width: 27 3 8" Hearth Rear Height: 17 5 8" Viewing Area: 36 x 21 3 4" VENTING SPECIFICATIONS For use with Majestic 36" Echelon II & Echelon II See Through Direct Vent Fireplaces Liquid Propane Framing Width 35 7 8" Framing Height 36 1 4" Framing Depth 18 1 2" BTU 23 Electronic ignition with seamless battery backup and provides continued operation in the event of a power outage (IPI CPI switch standard)