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Question about the selection of domestic weater heater

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lzh007

Mechanical
Jan 17, 2005
35
Normally for apartment building, should we select water tank for a domestic water heater? (for example there are 70 suits inside)
As I read in Ashrae handbook, 2 data are used to select heater and tank, recovery rate GPH and size of storage capacity Galon.
While my boss always selects a heater with a huge gas input but a very small storage capacity without providing additional storage tank. Is this the new design concept or is he wrong?

THX
 
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