Sierra Flame Boston 36" Direct Vent Linear with Electronic Ignition FireplaceThe Sierra Flame Boston 36 is the ultimate gas fireplace, whether youre planning on entertaining or just want to unwind after a long day at work. The Boston Gas 36 gives you quick convenient heat so you can get down to business of relaxing in front of the flames. This fireplace is a perfect blend of tradition and functionality. At 16,000 BTUs it throws ample heat because of the less than 10 depth and smaller than 4 x 6 venting. Product Features True