A fireplace that's suitable for in-wall installation doesn't have to be tiny, and it doesn't need to lack any power. In fact, it can be something like this 36-Inch Tahoe Deluxe Clean Face Direct Vent Gas Fireplace that has all of the heating capacity, and lots of other useful features to boot. Includes Burner, Ember Bed, 6-piece Ceramic Fiber Log Set, Barrier Screen and Electrical Junction Box. Features Model # DVCD36FP70N. Fuel Natural Gas. Manual variable flame height. Matte black interior walls. Black clean face. Top or rear vent field convertible. Control panel located behind lower panel. Intermittent Pilot with On/Off Switch Battery Backup and AC Adapter . Manufactured for indoor use. Btu/Hr 14,000 20,000. Dimensions Overall Dimensions 37 W Front x 35.62 H x 16.37 D x 24.5 W Rear . Rough framing dimensions 37.37 W x 35.75 H x 16.37 D . Viewing area dimensions 34 W x 23.16 H 782 sq. .