Dimensions (D*W*H): 34": (18.0*36.0*40.0)"
38": (16.0*38.0*38.0)"
42": (19.0*42.0*43.0)"
Framing Dimensions (D*W*H): 34": (18.0*36.0*40.0)"
38": (18.0*40.0*44.0)"
42": (22.0*45.0*51.0)"
Fuel Type: Gas
Vent Type: Direct Vent
Vent Size: 5x8
Ignition Type: Electronic
Installation: Zero Clearance
Style: Traditional
Vent Inner Diameter: 5"
Vent Outer Diameter: 8"
Weight (LBS): 38": 120
42": 140
BTU: 34": 18000 (Heats Up To 0600 Sq. Ft.) 
38": 24000 (Heats Up To 0800 Sq. Ft.)
42": 32500 (Heats Up To 1000 Sq. Ft.)