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BEopt Error: Cannot model a water heater without hot water distribution.

asked 2018-07-03 18:52:46 -0600

AL14
11 ●1

updated 2018-07-24 11:44:43 -0600

__AmirRoth__

4446 ●5 ●17 http://bleedinggreenna...

I am modeling a multifamily building retrofit. Existing building has a central gas water heater, retrofit has individual HPWH in each unit. I keep getting this error when I try to run the model. I've tried different HPWH options and different distribution options and always get the same error. Has anyone seen this before? Is it not possible to switch from a central system to a distributed system?

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answered 2018-07-12 12:56:32 -0600

Eric Wilson

1853 ●12 ●8 https://resstock.nrel.gov/

The "Water Heating > Distribution" category is for the hot water pipes within each unit, so you need to pick an option that isn't None if you have a water heater (both individual and central).

The "Water Heating > Central Distribution" category is for the hot water pipes between units, so you only need to pick an option that isn't None if you have a central water heater.

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Asked: 2018-07-03 18:52:46 -0600

Seen: 168 times

Last updated: Jul 12 '18

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BEopt Error: Cannot model a water heater without hot water distribution. edit