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�� � <br />��,� <br />HEAi?NG d AfR C{1�iDR1t1NIN{i, �G. <br />OctobeY• 1 ��t, �ti15 <br />To Whon� It Ivtay Concern; <br />This letter is rr�eant to clai•ify � concern regarding the range aa.ld dryer exhaust vent <br />nlaterials installed at the SiltTer Lake i;enter to���lhomes buiit by Poiygon Homes <br />Northz�vest. Speci�ically, tl�e plan "E1 and L3" townhames in buildings 3, f, 7, S, 9, 10, <br />18, 14, a.nd 20. After haviilg rt �•e�sresciitativc vf Bob's I Ieating ��erfarm a 13hysic��1 <br />inspecfion of all E1 �.nd E3 plan units ii� tllese buildings, �e can co7lfirzn rliese <br />instailations ]lave been compieted using 30 ga«ge soIid metal ciuct #or the rauge exhausts, <br />and 28 gauge sol..id metal duct for the dryer exhausts in �ccordance r��ith. cliapter 15 of tihe <br />20121�niet�lational Residential Code. <br />Sincerely, <br />Ryan Strom <br />MechanicaJ Engineer <br />Bob's Heating and �i.r Condiiioning, inc. <br />