Shown below are the enlarged images of the AO Smith ProMax Spec Sheet for the ENT-50 water heater. Notice the red arrow pointing out that these water heaters are HUD Approved for mobile (Manufactured) homes.
I have also included images of the full ProMax spec sheet.
![Enlarged HUD Approved AO Smith Promax residential electric water heater spec sheet](https://www.allwaterproducts.com/wp-content/uploads/2022/01/Enlarged-HUD-Approved-AO-Smith-Promax-residential-electric-water-heater-spec-sheet.png)
![AO Smith residential water heater spec sheet for ENT-50](https://www.allwaterproducts.com/wp-content/uploads/2022/01/AO-Smith-residential-water-heater-spec-sheet-for-ENT-50.png)
![Page One of the AO Smith ProMax Spec Sheet for the ENT-50 water heater](https://www.allwaterproducts.com/wp-content/uploads/2022/01/Page-One-of-the-AO-Smith-ProMax-water-heater-spec-sheet-1.png)
![Page Two of the AO Smith ProMax Spec Sheet](https://www.allwaterproducts.com/wp-content/uploads/2022/01/Page-Two-of-the-AO-Smith-ProMax-Spec-Sheet.png)
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Related article: Choosing The Best Mobile Home Water Heater For You