/* * These styles apply ONLY to the header and footer assets. */ * { padding: 0; margin: 0; box-sizing: border-box; } .DataList .Item .Title a { color: red; } .footer { background: #f5f5f6; color: #555a62; font-size: 14px; line-height: 1.5; padding: 18px 0; } .footer-wrap { padding-left: 18px; padding-right: 18px; max-width: 1236px; margin: 0 auto; } .footer a { color: #0291db; } .footer a:hover { color: #0276b3; } .footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; margin: -3px; } .footer-col { padding: 0 3px; } .footer-col-copyRight { justify-content: flex-start; } .footer-col-logo { justify-content: flex-end; } .footer-col-copyRight, .footer-col-logo { flex: 1; display: flex; } .logo { width: 120px; height: 28px; opacity: 0.6; } @media screen and (max-width: 768px) { .footer-row { display: block; } .footer-col { width: 100%; text-align: center; margin: 6px 0; } .footer-col:first-child { margin-top: 0; } .footer-col:last-child { margin-bottom: 0; } .footer-col-copyRight, .footer-col-logo { justify-content: center; } .logo { margin: 0 auto; } } #HeaderAds { margin-bottom: 1rem; } /* header links */ #navigation-bar { box-sizing: border-box; display: flex; flex-direction: column; margin-left: auto; margin-right: auto; max-width: 1264px; padding-left: 20px; padding-right: 20px; position: relative; width: 100%; } @media (max-width: 806px) { #navigation-bar { padding-left: 0; padding-right: 0; } } #navigation-bar nav { padding-right: 0; position: relative; z-index: 1; float: none; display: flex; flex-direction: row; justify-content: flex-end; width: 100%; } #navigation-bar nav ul { background: none; } #navigation-bar nav li { display: inline-block; height: 37px; line-height: 37px; font-size: 14px; font-weight: 300; } #navigation-bar nav a { display: block; padding: 0 15px; color: rgb(228,104,34); text-decoration: none; } a.mrc-button { background: rgb(228,104,34); color: #fff!important; } /* Social links in footer */ .social-footer { background: rgb(228,104,34); text-align: center; } .social-links { display: flex; justify-content: center; list-style: none; padding: 50px 0; } .social-links a { display: flex; align-items: center; justify-content: center; padding: 0 20px; color: black; text-decoration: none; font-weight: 600; font-size: 20px; } .social-links a:hover { text-decoration: underline; } .social-links svg { margin-right: 10px; } @media screen and (max-width: 768px) { .social-links { flex-direction: column; } .social-links a { margin-bottom: 10px; } } /*# sourceMappingURL=styles.css.map */

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Combustion air duct

zepfan

zepfan Member Posts: 312

August 2018 in THE MAIN WALL

Does any one know if in NFPA 54, or the IFGC it lists the minimum gage metal needed for combustion air into a boiler room? The room in question has on 400 mbh boiler. I can’t find a minimum size listed. Thanks to all

0

Comments

STEVEusaPA Member Posts: 4,927

August 2018

I've only seen 24ga for a thimble listed as minimum.

steve
-1

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/* * These styles apply ONLY to the header and footer assets. */ * { padding: 0; margin: 0; box-sizing: border-box; } .DataList .Item .Title a { color: red; } .footer { background: #f5f5f6; color: #555a62; font-size: 14px; line-height: 1.5; padding: 18px 0; } .footer-wrap { padding-left: 18px; padding-right: 18px; max-width: 1236px; margin: 0 auto; } .footer a { color: #0291db; } .footer a:hover { color: #0276b3; } .footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; margin: -3px; } .footer-col { padding: 0 3px; } .footer-col-copyRight { justify-content: flex-start; } .footer-col-logo { justify-content: flex-end; } .footer-col-copyRight, .footer-col-logo { flex: 1; display: flex; } .logo { width: 120px; height: 28px; opacity: 0.6; } @media screen and (max-width: 768px) { .footer-row { display: block; } .footer-col { width: 100%; text-align: center; margin: 6px 0; } .footer-col:first-child { margin-top: 0; } .footer-col:last-child { margin-bottom: 0; } .footer-col-copyRight, .footer-col-logo { justify-content: center; } .logo { margin: 0 auto; } } #HeaderAds { margin-bottom: 1rem; } /* header links */ #navigation-bar { box-sizing: border-box; display: flex; flex-direction: column; margin-left: auto; margin-right: auto; max-width: 1264px; padding-left: 20px; padding-right: 20px; position: relative; width: 100%; } @media (max-width: 806px) { #navigation-bar { padding-left: 0; padding-right: 0; } } #navigation-bar nav { padding-right: 0; position: relative; z-index: 1; float: none; display: flex; flex-direction: row; justify-content: flex-end; width: 100%; } #navigation-bar nav ul { background: none; } #navigation-bar nav li { display: inline-block; height: 37px; line-height: 37px; font-size: 14px; font-weight: 300; } #navigation-bar nav a { display: block; padding: 0 15px; color: rgb(228,104,34); text-decoration: none; } a.mrc-button { background: rgb(228,104,34); color: #fff!important; } /* Social links in footer */ .social-footer { background: rgb(228,104,34); text-align: center; } .social-links { display: flex; justify-content: center; list-style: none; padding: 50px 0; } .social-links a { display: flex; align-items: center; justify-content: center; padding: 0 20px; color: black; text-decoration: none; font-weight: 600; font-size: 20px; } .social-links a:hover { text-decoration: underline; } .social-links svg { margin-right: 10px; } @media screen and (max-width: 768px) { .social-links { flex-direction: column; } .social-links a { margin-bottom: 10px; } } /*# sourceMappingURL=styles.css.map */