Need to replace a 40 gal. electric water heater in one of my buildings, 14 yr. old Lochinvar, but is a 277v. heater. Building was built under '96 BOCA. All of these water heaters are NOT ASME-rated. Used to be that all electric water heaters installed in a commercial building had to be ASME rated. Now all that the code says is that it meets UL 1453/174. Can I / should I use a standard water heater, swap out the 240v. elements for 277v., or go with the 277v. Rheem commercial model? I'm pushing for the 277v model, want no liability issues, but...
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