three sided fireplace 行吗?但比墙厚得多啊
http://www.woodlanddirect.com/Superior-DRT35PF-Direct-Vent-Peninsula-Gas-Fireplace?gclid=CjwKEAiAvs7CBRC24rao6bGCoiASJABaCt5DhuIizYE9NkLfcDeH5j053-01R9gRb98K1h08cVM9RxoCNjjw_wcB#436785
http://www.woodlanddirect.com/Superior-DRT35PF-Direct-Vent-Peninsula-Gas-Fireplace?gclid=CjwKEAiAvs7CBRC24rao6bGCoiASJABaCt5DhuIizYE9NkLfcDeH5j053-01R9gRb98K1h08cVM9RxoCNjjw_wcB#436785