This exception in the code allows any dwellings or additions that are 500 or less to use an Electric water heater. Three things need to be designated:
- The area of all New square footage must be 500 sqft or less.
- The water heater must be designated as Electric Resistance.
- At the plant level of the Tree, in the DHW tab, you must specify the Distribution as Point Of Use (POU)
Our example file, Single Family EA+ADU.bld provides an example of this.
Note the POU credit requires the design of the water heating system meets the criteria in 5.6.2.3 of the Single-Family Manual, including the following hot water pipe length limitations from the water heater to the fixtures:
3/8” pipe – 15 ft
1/2” pipe – 10 ft
3/4” pipe – 5 ft
← Frequently Asked Questions