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�� � <br />HEAtiNG d �fR CUNDf�it1�lJi�, �G. <br />(�ctol�et' 1 ��`E', 2015 <br />To Whom It May ConcerEl: <br />This letter is meant to clar•ify a co�lcern regardin� the range al�d dryer exhaust vent <br />nlat�e�•ials instaIled at �he SiIver Lake (,enter t�wtlhonies �uilt by Polygon Holnes <br />Narthti�vest. Specifcatly, the plan "Fl and E3" iow��ilomes in buildings 3, 5, 7, S, 9, 10, <br />18, 14, and 20. After having a represerltatiW�e of �ob's I-Ieating per-form a physical <br />inspecfiou of �Il EI �nd E3 plan units in these buildings, we can cc�nfirm tl�ese <br />installa.tions l�ave been completed using 30 �;auge solici metal duct Ic�r the rari�e exhausts, <br />and 28 gauge solid metaP duct for the dryer exhausts in accordance with. cliapter 15 of the <br />2012 lntet-�iaiianal Residential Code. <br />Sincerely, <br />�y� <br />�� <br />��. <br />Ryan Strom <br />Mechanical Engineer <br />Bob's 1-Ieating and �ir Conditioning, ii�c. <br />