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Water heater sizing for Nursing Home--Any practical calculators?
I have tried several on line, some come up with same or larger than existing.
Existing is working fine, want to change proactively before failure.
Was sized for 1971 usage, 1997 change out was based on that sizing.
Runs at 140 tank temp, mixing valve set at 115 max output, recir line.
Short cycles until tub time, then may have a long cycle.
Want to replace with HTP Phoenix.
Looking for friendly calculator on line.
Also the recovery gain/increase by using temp/mix valve.
I can post all the numbers if someone is into this.