How to Estimate the Size of Hot Water Accumulators for Residential Buildings?

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Estimating the size of hot water accumulators for residential buildings involves analyzing daily hot water demand against production rates. The discussion highlights the use of graphs to visualize this relationship, though the original poster finds their school book's guidance unclear. They seek effective methods for accurate estimation and share a resource with conversion tools, noting their company's use of standard units may complicate communication. The importance of understanding both demand and production rates is emphasized for proper sizing. Accurate estimation is crucial for efficient hot water system design.
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I'm looking for a way to estimate the size of hot water accumulators for residental buildings. I have made myself graphs describing the varying demand of hot water during a typical day, and then compared this to a graph describing the production rate of new hot water. This is according to a school book of mine, however I've not been able to get much sense out of it. If anybody knows of a good method I'll really appreciate it :)
 
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Here is a page with some useful information and conversion tools. My company still works in standard and not metric terminology, so if I give you my methods, it may confuse you. The site is in metric units.

http://www.engineeringtoolbox.com/design-hot-water-system-d_92.html"
 
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