div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=natural-gas-pipe-sizing-chart-fireboulder-the-sizing-charts-above-list-the-specifichtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: NATURAL GAS PIPE SIZING CHART - FireBoulder · PDF fileNOTE: The sizing charts above list the specific pipe sizes required for the amount of BTUs for a new gas line installations loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentsnetreader031viewer20220123015aa656ee7f8b9a185d8e805bhtml5thumbnails1jpg width=140 height=200 divdiv