Specifications:

Manufacturer: Williams Comfort
Manufacturer Part Number: 3509622A
Item: Wall Heater
BtuH Input: 35,000
BtuH Output: 23,700
Built-In Features: Automatic Thermostat, Contemporary
Floor to Center of Vent: 62-1/4"
Gas Connection: 1/2"
Gas Type: LP 
Heater Type: Top Vent
Height: 68"
Width: 16"
Depth: 10"
Ignition Type: Matchless Piezo
Number of Speeds: 0
Vent Type: Top
Wall Opening Depth: 4-1/2"
Wall Opening Height: 62-1/4"
Wall Opening Width: 14-3/8"
Wall Type: Single