Not published: a relationship between tank height and efficiency (UEF)
No source this registry reads (DOE CCD, ENERGY STAR) publishes one — a shorter tank is not filed as more or less efficient than a taller one at the same rated volume.
None of the models on file in this scope carries a filed height yet; the selector below filters by the space you have.
Not published: models with a filed footprint in this scope
None of the models on file in this scope carries a filed height or footprint in the registries this site reads.
Check the water heater selector for today's full catalog.
Enter your own available height, width, depth and (for a heat pump model) ambient temperature on the water heater selector to check the full catalog against your own space, not just the models shown above.