div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: nationallandcomSection C Heating and Cooling Svstems 1 Air purifier 2 Attic Tan 3 Whole house fan 4 Central air conditioning year installed if known S Heating system year src=https:reader034vdocumentsnetreader034viewer20220421135e8eb55550fe8a40e7325058html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: nationallandcomSection C Heating and Cooling Svstems 1 Air purifier 2 Attic Tan 3 Whole house fan 4 Central air conditioning year installed if known S Heating system year src=https:reader034vdocumentsnetreader034viewer20220421135e8eb55550fe8a40e7325058html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: nationallandcomSection C Heating and Cooling Svstems 1 Air purifier 2 Attic Tan 3 Whole house fan 4 Central air conditioning year installed if known S Heating system year src=https:reader034vdocumentsnetreader034viewer20220421135e8eb55550fe8a40e7325058html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: nationallandcomSection C Heating and Cooling Svstems 1 Air purifier 2 Attic Tan 3 Whole house fan 4 Central air conditioning year installed if known S Heating system year src=https:reader034vdocumentsnetreader034viewer20220421135e8eb55550fe8a40e7325058html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdiv