On Oct 8, 3:49 pm, " wrote:
Lowes has a big selection on Whirlpool water heaters. Some of them
are called 'Tall' water heaters and some are just plain old water
heaters. However, the only dimensional difference I see between the
'Tall' and 'standard' is in the diameter. What is up with that?
The 'Tall' water heaters also seem to have a slightly higher energy
factor (about 10% higher). I assume that's because they have more
insulation (contributing to the larger diameter).....?

Any anyone shed some light on this for me?

Are you sure they are the same capacity? A 30 gallon tall could be the
same height as a 40 gallon standard but would be thinner.

(Don't get ****ed... you didn't post model numbers, so we don't know
what you were looking at.)