About Navisizer
NaviSizer is designed to assist with sizing of domestic hot water heating systems with Navien NPE Series tankless water heaters. For residential applications, NaviSizer offers system sizing, calculation of operating cost...
NaviSizer is designed to assist with sizing of domestic hot water heating systems with Navien NPE Series tankless water heaters. For residential applications, NaviSizer offers system sizing, calculation of operating cost and savings, and provides a comprehensive output to be used as a job spec. For commercial applications, NaviSizer uses ASHREA Hunter Curve calculations to size a broad range of applications. Both tankless and tankless with storage solutions are offered along with a comprehensive system spec that can be saved, printed, or emailed.
Version History Added the NHW-AI and NHW-AE units 3 04/29/2024 We updated all the model lines and improved functionality. 2 07/07/2022 Update to Postal Codes 1.6 07/16/2020 Updates to how we handle location data and postal codes 1.5 03/11/2020 Updated Storage Selection 1.4 06/12/2018 Updated States/Provinces On Account Creation 1.3 04/30/2018 Fixed Account Creation Bug Added Canadian Provinces 1.2 01/16/2018 Updates to Residential Calculation Updates to Portrait View for Phones 1.1 01/08/2018 1.0 12/26/2017
Previous Versions
Here you can find the changelog of Navisizer since it was posted on our website on 2021-12-13 23:15:55.
The latest version is 3 and it was updated on 2026-06-24 02:49:03. See below the changes in each version.
Navisizer version 3
Updated At: 2026-06-03
Changes: Version History Added the NHW-AI and NHW-AE units 3 04/29/2024 We updated all the model lines and improved functionality. 2 07/07/2022 Update to Postal Codes 1.6 07/16/2020 Updates to how we handle location data and postal codes 1.5 03/11/2020 Updated Storage Selection 1.4 06/12/2018 Updated States/Provinces On Account Creation 1.3 04/30/2018 Fixed Account Creation Bug
Added Canadian Provinces 1.2 01/16/2018 Updates to Residential Calculation
Updates to Portrait View for Phones 1.1 01/08/2018 1.0 12/26/2017
Navisizer version 3
Updated At: 2024-04-29
Changes: Apr 29, 2024
Version 3
Added the NHW-AI and NHW-AE units
Navisizer version 3
Updated At: 2024-04-29
Changes: Added the NHW-AI and NHW-AE units
Navisizer version 2
Updated At: 2022-07-07
Changes: Jul 7, 2022 Version 2
We updated all the model lines and improved functionality.
Navisizer version 1.6
Updated At: 2020-07-16
Changes: Jul 16, 2020 Version 1.6
Update to Postal Codes
Disclaimer
Official App Store Link
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