load calculations Archives - Energy Vanguard https://www.energyvanguard.com/tag/load-calculations/ Building science knowledge, HVAC design, & fun Fri, 22 Sep 2023 15:37:46 +0000 en-US hourly 1 https://wordpress.org/?v=6.6.2 Do You Really Need That Much Window Area? https://www.energyvanguard.com/blog/do-you-really-need-that-much-window-area/ https://www.energyvanguard.com/blog/do-you-really-need-that-much-window-area/#view_comments Tue, 01 Aug 2023 15:43:57 +0000 https://www.energyvanguard.com/?p=7937 Windows are thermal bridges in pretty much every home.  The best windows available have an R-value of only about 12.  More affordable windows are in the R-3 to R-6 range.  Wall R-values are in the 13 to 15 range on…

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]]> https://www.energyvanguard.com/blog/do-you-really-need-that-much-window-area/feed/ 43 Cooling Load Variation With Changing Temperatures https://www.energyvanguard.com/blog/cooling-load-variation-with-changing-temperatures/ https://www.energyvanguard.com/blog/cooling-load-variation-with-changing-temperatures/#view_comments Wed, 28 Jun 2023 13:48:18 +0000 https://www.energyvanguard.com/?p=8379 Sizing an air conditioner (or heat pump) shouldn’t be left to guesswork.  That’s why we have engineering protocols like ACCA Manual J for calculating the amount of cooling load a house experiences.  Among the factors that contribute are the outdoor…

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]]> https://www.energyvanguard.com/blog/cooling-load-variation-with-changing-temperatures/feed/ 12 Understanding Manual J Occupant Loads https://www.energyvanguard.com/blog/understanding-manual-j-occupant-loads/ https://www.energyvanguard.com/blog/understanding-manual-j-occupant-loads/#view_comments Tue, 08 Sep 2020 20:56:56 +0000 http://energyvanguard.flywheelsites.com/?blog_post=understanding-manual-j-occupant-loads People complicate things.  If, say, you want to sell a motorcycle, you place an ad and interested potential buyers come check it out, maybe take it for a little ride, and then one of them buys it.  But every once…

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