div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page1jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails1jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page2jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails2jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page3jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails3jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page4jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails4jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page5jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails5jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=6Page 6button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page6jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=6 data-page=6 class=ts-thumb lazyload alt=Page 6: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails6jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=7Page 7button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page7jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=7 data-page=7 class=ts-thumb lazyload alt=Page 7: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails7jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=8Page 8button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page8jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=8 data-page=8 class=ts-thumb lazyload alt=Page 8: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails8jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=9Page 9button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page9jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=9 data-page=9 class=ts-thumb lazyload alt=Page 9: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails9jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=10Page 10button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page10jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=10 data-page=10 class=ts-thumb lazyload alt=Page 10: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails10jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=11Page 11button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page11jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=11 data-page=11 class=ts-thumb lazyload alt=Page 11: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails11jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=12Page 12button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page12jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=12 data-page=12 class=ts-thumb lazyload alt=Page 12: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails12jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=13Page 13button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page13jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=13 data-page=13 class=ts-thumb lazyload alt=Page 13: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails13jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=14Page 14button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page14jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=14 data-page=14 class=ts-thumb lazyload alt=Page 14: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails14jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=15Page 15button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page15jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=15 data-page=15 class=ts-thumb lazyload alt=Page 15: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails15jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=16Page 16button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page16jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=16 data-page=16 class=ts-thumb lazyload alt=Page 16: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails16jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=17Page 17button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page17jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=17 data-page=17 class=ts-thumb lazyload alt=Page 17: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails17jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=18Page 18button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page18jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=18 data-page=18 class=ts-thumb lazyload alt=Page 18: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails18jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=19Page 19button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page19jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=19 data-page=19 class=ts-thumb lazyload alt=Page 19: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails19jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=20Page 20button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page20jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=20 data-page=20 class=ts-thumb lazyload alt=Page 20: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails20jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=21Page 21button div class=ts-imagea href=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5page21jpg target=_blank img data-url=this-is-unavoidable-every-ift-of-horizontal-flue-must-be-followed-by-3ft-of-verticalhtmlpage=21 data-page=21 class=ts-thumb lazyload alt=Page 21: this is unavoidable every Ift of horizontal flue must be followed by 3ft of vertical After installing the heater a check must be made to ensure that there are no products of combustion loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsnetreader042viewer20220308135b2013777f8b9ae4208b5ba6html5thumbnails21jpg width=140 height=200 adivdiv
