Question-and-Answer Resource for the Building Energy Modeling Community

CBECC Res 2019 Standard Design DHW Selection

asked 2024-12-05 19:13:39 -0600

ms0130
11 ●3

updated 2024-12-06 12:45:54 -0600

sashadf1
1146 ●1 ●41 ●10

I'm modeling a SFH using point-of-use tankless electric resistance water heater. I saw that in the analysis results, the standard design is using a UEF HPWH, which makes the electric resistance water heater definitely failing the compliance. How is this standard design option selected?

I modeled the same home in CBECC 2022, which standard design adopted a point-of-use water heater.

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2024-12-06 10:45:05 -0600

LukeInCali
116 ●7 ●3

The Standard Design is selected per the ACM (Alternative Calculation method). In 2019, there was no exception to the UEF 2.0 HPWH in the Standard Design, however in 2022 a point of use electric resistance unit was added as a Standard Design assumption for small additions and new construction <=500 sq.ft.

edit flag offensive delete link

add a comment

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Training Workshops

Careers

Question Tools

1 follower

Stats

Asked: 2024-12-05 19:13:39 -0600

Seen: 115 times

Last updated: Dec 06

Site design and logo: Copyright © 2015 Big Ladder Software LLC. All rights reserved.
The Unmet Hours and Big Ladder names and logos are trademarks of Big Ladder Software LLC.
User contributions licensed under the Creative Commons Attribution Share Alike 3.0 License.

CBECC Res 2019 Standard Design DHW Selection edit