Director's Advisory FS-171-10
Friday, January 01 2010 @ 04:05 PM EST
Director's Advisory FS-171-10 - Use of Existing Chimneys with Direct Vent Gas Fireplaces.
Advisory FS17110
*Click image to enlarge.
HVAC TECH GROUP
http://www.hvactechgroup.com/article.php/20100122160533415
